Create your free account or Sign in to continue. To prevent his AP Environmental Science students from having "problem fatigue," Florida educator Scott Sowell focuses on how environmental solutions are developed, justified, implemented, and evaluated. Look up the definition of the term poaching and summarize your understanding of what it means in the space below. hhmi biointeractive tuskless elephants answer key About; Location; Menu; FAQ; Contacts Some prevent pathogens from entering the body, and some attack pathogens already inside the body. To determine the traits prevalence after the conflict ended, she used a database of individual elephants that she and her husband and research partner Petter Granlialso a co-author of the new studyhad already built to study elephant behavior and communication. %PDF-1.5 % As the years went on from 2007-2013, we saw a growth in total illegal elephant deaths. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. Use evidence-based predictions to explain how a population changes over time due to human impacts. %%EOF By watching segments of this video, students will follow the analyses and discoveries of Joyce Poole, a scientist who has studied elephants for many years. pe*X|Xem&5*d X;d3^"kNIc rH+d ``s2AJn#*d9X;DAge`0?k G Scientific Explanation of Evolution by Natural Selection. This activity builds on information presented in the video Selection for Tuskless Elephants. Typically, though, such studies focus on small creatures that have large population sizes and fast generational turnovers because changes they undergo are easier to observe in real time. II. endstream endobj startxref Pooles observationswhich were used a few months later to support a ban on international ivory tradewere alarming, but they mostly made sense. Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College Introduction There was a huge skew in the sex ratio, with very few adult males. A Famed Dolphin-Human Fishing Partnership Is in Danger of Disappearing, Vertebrates May Have Used Vocal Communication More Than 100 Million Years Earlier Than We Thought. The same high-quality resources are now available with new features, including a logged-in experience. The Google Drive folder is set as View Only; to save a copy of a document in this folder to your Google Drive, open that document, then select File Make a copy. These documents can be copied, modified, and distributed online following the Terms of Use listed in the Details section below, including crediting BioInteractive. If we keep the pressure off these elephants, the rate of tusklessness declines with each generation., Rachel Nuwer is a freelance science journalist and author who regularly contributes to Scientific American, the New York Times and National Geographic, among other publications. Posted on 11/01/2021 by 11/01/2021 by Coherent lesson sequences driven by students asking questions about phenomena. !: H3d -:Cg Zf d1 %%EOF More than 30 years later, she finally may have her answer. This pattern suggested to the researchers a sex-linked genetic origin for what they were seeing. The frequency of tusklessness, the team found, increased from about 18.5 percent before the war to 50.9 percent after. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. +A,2k]lJ^G@R`Y0~8!CNC!MM5V_.0mLt(P1Gh9 k1]8Ay0 Ik@ +Xndi) g[! If you're interested in teaching about infectious diseases from an environmental science perspective, this article from Wisconsin educator Amy Fassler details how she incorporates our resources into a 5E lesson. It also includes a library of ready-to-use videos with embedded questions. As poaching in Gorongosa has been stamped out through sustained conservation efforts, the number of baby elephants born tuskless has begun to decrease. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. II. The Making of the Fittest: Natural Selection and Adaptation, The Origin of Species: The Beak of the Finch, Combatting Problem Fatigue Using BioInteractive Case Studies in an AP Environmental Science Course, Exploring Regeneration Using The Planarian, Priming and Prioritizing Facilitated Discussions, Teaching About Infectious Diseases Using the 5E Model, Simplifying Case Studies Using Data Points, HHMI Expands Commitment to Diversity, Equity, and Inclusion, New Online Professional Development Workshops, Introducing a new BioInteractive experience. The study shows that tuskless male elephant offspring are not viable, meaning that population decline is accentuated, Pelletier says. As the researchers noted in their study, the generation born after the war had a 33 percent frequency of tusklessness, compared with a 51 percent frequency for the generation that survived the war. PART 2: Video Activity . As of 2014, about 350,000 savanna elephants were living in Africa. hbbd```b``"WHg -,^ Developing an Explanation for Tuskless Elephant www.BioInteractive.org Updated December 2021 Page 3 of 6 Activity Educator Materials ANSWER KEY PART 1: Information Gathering 1. %%EOF Keep up with the latest from BioInteractive! 255 0 obj <> endobj endstream endobj startxref Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. Meat Only: 19 b. Tusks Only: 75 c. Meat and Tusks: 27 4. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the striking observation that many female elephants lack tusks. Discover implementation ideas, lesson sequences, resource modifications, quick tips, and more in this collection of videos and in-depth articles. This activity explores images of a coral bleaching event, which serve as phenomena for learning about marine ecosystems, human impacts, and climate change. 0 After creating an account, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to their interests. Answers may vary. But in males with no other X chromosome to fall back on, that mutation appears to cause death in the womb. adaptation, claim, evidence, frequency, phenotype, poaching, population, reasoning, selection, selective pressure, variation. Describe how mutations in a variety of genes can affect the development of internal and external sex characteristics. Their current rate of decline is 8% per year, primarily due to illegal killing called poaching. hb```lJB Poachers, she knew, prioritized elephants with the largest tusks. HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. View details . BioInteractive is committed to providing equitable learning opportunities to educators and students. One type of evidence they use is genetic data. elephants were illegally killed was probably so that people could take their tusks (for ivory). Lessons. Hhmi Biointeractive Answer Key. After making these observations, Campbell-Staton decided it was time to use a whole-genome analysis to pinpoint the potential genetic factors. Scientific Explanation of Evolution by Natural Selection. Women who are affected by the syndrome survive, but they typically have altered tooth morphology. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point . Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so there is a strong natural selection for having tusks. Instead of having sons and daughters at an equal proportion, tuskless mothers gave birth to daughters roughly two thirds of the time. a. keyboard_arrow_up Show footer Explore the methods scientists use to survey elephants. 0 Describe how biological sex and gender differ from each other. This interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans. Elephant Evolution and Adaptation. This is a beautiful study that is certain to become a textbook example of how intense human exploitation of wildlife can rapidly change the natural world, says Jeffrey Good, a mammalian evolutionary geneticist at the University of Montana, who was not involved in the research. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. Tuskless mothers, on the other hand, had about an equal proportion of daughters with or without tusks (or, in some cases, with a single tusk). The added information provided at pause points within the animation How We Get Our Skin Color allows for a richer exploration of the topic of human skin structure and function. Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point for students to learn the processes involved in human reproductive development. Campbell-Staton and his co-first author, Brian Arnold of Princeton, were able to join forces with the other researchers to collect blood samples from 18 femalessome with tusks and some withoutthat would meet the genomic requirements for the project. The researchers first needed to determine whether it was actually the selection from poaching that led to a disproportionate number of tuskless individuals or if it was just some fluke of chance that emerged as the population crashed. endstream endobj startxref Hear how educators are using BioInteractive content in their teaching. In 1989, when elephant ethologist Joyce Poole began carrying out surveys of three East African elephant populations to understand the impact that heavy poaching was having on them, she quickly noted several stark trends. 11{TO8+J1FOf%E%12Xbtb?S`8,A 7 \K(Dc6@ UJ Among the younger females, who were born after this period of heavy poaching, 33% are tuskless.For more short films and resources on elephants, visit http://www.hhmi.org/biointeractive/elephants endstream endobj 255 0 obj <. Math.N-Q.A.1, Math.N-Q.A.3, Math.S-IC.3; MP2, MP3, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license, Why no tusks? This video case study explores whether elephants can detect, interpret, and respond to signals delivered by underground vibrations. Like other places that had undergone intense poaching, Gorongosas female elephants exhibited an abnormally high proportion of tusklessness. 318 0 obj <>stream Description This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the striking observation that many female elephants lack tusks. Campbell-Staton was just as perplexed by this as Poole had been, and he soon struck up a collaboration with her and other elephant ecologists. Real science, real stories, and real data to engage students in exploring the living world. 0 Analyze quantitative data in order to make predictions based on evidence. Most immune cells develop from stem cells in the bone marrow. Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. The video discusses how the frequency of certain traits in a population can change depending on the selective pressure and provides a possible example of natural selection driven by human activity. Thanks for reading Scientific American. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. 415 0 obj <> endobj In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. In this activity, students engage in key science practices that scientists used to figure out ecosystem dynamics in the Serengeti. Answers may vary. This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. Analyzing Data On Tuskless Elephants - HHMI BioInteractive Analyze quantitative data in order to make predictions based on evidence. (The first six weeks, as well as the culminating project . Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosomea genetic change that also explains the sex skew Poole saw. Why Do Some People with the Sickle Cell Genotype Not Have Symptoms? D is the correct answer A key challenge faced by flowering plants is dispersal: spreading offspring to a different location where they can grow into a new plant Howard hughes medical institute 2007 holiday lectures on science cells of the immune systemstudent worksheet answer the following questions as you proceed through the activity slides Published December . We were going to drive around at Gorongosa, spot an elephant, see if the elephant had tusks or not, wait for the elephant to poop and then collect its DNA, he says. Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. 2 hbbd```b``"WH&. lz`f1,f u d Vi 2D7e@l( XDrG;".|`10H-v9Pl=0 u 292 0 obj <>/Filter/FlateDecode/ID[<035587B7358627438EA91049877A1170>]/Index[255 64]/Info 254 0 R/Length 155/Prev 375654/Root 256 0 R/Size 319/Type/XRef/W[1 3 1]>>stream Hear how experienced science educators are using BioInteractive resources with their students. Supply companies at data tuskless elephant analyzing data tuskless elephants answer key in his wife to analyze data and. In population simulations, the researchers confirmed that it is extremely unlikely that tusklessness would have changed so drastically by chance alone. Poaching is selecting for tuskless elephants, which are more likely to survive, mate, and pass on their genes. Most African . This video follows the work of researchers conducting the first census. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. Video Activity 7. In this activity, students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. Analyzing Data on Tuskless Elephants. This web tool provides a quick and easy way of visualizing and analyzing data without advanced technological requirements. This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Why no tusks? %PDF-1.6 % This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. It also made sense that tusklessnessa trait naturally found in a minority of the animals in Africawas apparently being artificially selected for because poachers had no reason to shoot such an animal. ;X2ELb/6-qRrT3p0=qb3]1#>7}}2D/Q 59E ,;! Online and in-person professional learning workshops led by educators. 3. a. This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. Follow Nuwer on Twitter @RachelNuwerCredit: Nick Higgins. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so one might expect strong natural selection for having tusks. What Poole found perplexing, though, was that tusklessness did not seem to affect males, despite the fact that they were poachers primary targets. Students apply what they have learned to evaluate the results of different tests that have been used throughout sports history to qualify female athletes to compete. Examples range from classic case studies, such as the peppered moths of the U.K. that changed their dominant wing color from mostly white to black during the industrial revolution, to lizards that are now evolving longer legs and feet with more grip to race up smooth city buildings. Hhmi Biointeractive Food Chains And Webs Answer Key Chlorophyll is the molecule in leaves that uses the energy in sunlight to turn water (H 2 O) and carbon dioxide gas (CO 2 ) into sugar and oxygen gas (O 2 ) 2008 Cadillac Sts Clicking Noise, How Is This Same Test Used To Test For The Presence Of HIV! IB Environmental Systems and Societies (2017). In Gorongosa National Park, Poole found that among the older female elephants, who survived a period of heavy poaching in the park, over 50% are tuskless. This activity guides the analysis of a published scientific figure from a study that measured species population declines on a global scale. 6. Total: 129 a. All workshops are online, facilitated by Ambassadors, and include opportunities to interact with our resources and learn from other educators. Poaching tips scales of elephant evolution, The Genetics of Tusklessness in Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots, Using Data to Investigate Elephant Evolution, Developing an Explanation for Tuskless Elephants, Allele and Phenotype Frequencies in Rock Pocket Mouse Populations, Color Variation Over Time in Rock Pocket Mouse Populations, Look Who's Coming for Dinner: Selection by Predation, The Making of the Fittest: Natural Selection and Adaptation, Developing an Explanation for Mouse Fur Color, Simulating Evolution of a Rock Pocket Mouse Population. But why werent there any tuskless males?. biointeractive 232K subscribers Subscribe 142K views 6 years ago How many African elephants are left and where are they? v0E H+1Q` d This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. The human immune system is made up of many cells, organs, and tissues. The resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. Not all downloadable documents for the resource may be available in this format. This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify. rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup Learn about the history of sex verification testing of athletes and the science behind the tests used. Let's Go! Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. Howard Hughes Medical Institute Statistical Data Explorer. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Shane Campbell-Staton of Princeton University, co-lead author of the new paper, has spent his career studying the ways that humans force such evolutionary changes across the tree of life. In this article from professor Karen Avery, see how she uses this unassuming model organism to teach concepts in cellular biology and genetics. 316 0 obj <>stream Provide evidence-based reasoning that uses available data to support a scientific claim. The Genetics of Tusklessness in Elephants This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. This video presents an intriguing phenomenon: two patients who carry the same genetic variation, which is known to cause sickle cell disease, have very different outcomes. endstream endobj 256 0 obj <. Suggest some ways to reduce the number of elephants that are illegally killed each year. Africa, adaptation, Gorongosa, microevolution, scientific methodology, scientific process, selective pressure, trait. This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. An audio descriptive version of the film is available via our media player. The following statement reflects our current and specific actions. Suggest some ways to reduce the number of elephants that are illegally killed each year. This activity explores images of elephants with and without tusks, which serve as phenomena for learning about selection and human impacts on the frequency of traits within populations. In this video, biologist Shane Campbell-Staton walks through the steps of collecting DNA samples from elephants in Gorongosa National Park and how he plans to analyze their DNA sequences.For more information and related materials, visit HHMI BioInteractive:https://www.biointeractive.org/classroom-resources/genetics-tusklessness-elephants Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. HS-LS4-2, HS-LS4-3, HS-LS4-4, HS-LS4-5; SEP1, SEP5, SEP6, EVO-1.E, EVO-1.G, SYI-2.B, SYI-3.D; SP3, SP4, SP5, SP6, Topic(s): 2.1, 2.6, 9.10 Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. Additionally, disruptions to the same region of the X chromosome in humans is associated with a syndrome that usually causes male fetuses to abort in the second trimester. If you're interested in using facilitated discussions to promote scientific literacy and empower students to make evidence-based decisions, this article from professor Holly Basta details how she restructured her course to promote student questioning and talk. Poaching is artificially selecting for tuskless elephants who can better survive, mate, and pass on their genes to the next generation. In this study, scientists used DNA profiling to determine where ivory seized from poachers had originated. Use evidence-based predictions to explain how a population changes over time due to human impacts. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. Poole, who is a co-author on the new paper, combed through old natural history films and amateur videos to estimate the prevalence of tusklessness prior to the war. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. Knowledge awaits. The sex ratio of the offspring of tuskless mothers also indicated that the genetics responsible may be lethal for males. This data-driven activity accompanies the video Selection for Tuskless Elephants. Key Concepts. eaht``wC(#U]}I)C Discover tools to help plan lessons and opportunities to support professional learning. Anatomy & Physiology Scientific Skills & Literacy Click & Learn High School General High School AP/IB College Selection for Tuskless Elephants This data-driven activity accompanies the video Selection for Tuskless Elephants. English; analyzing data on tuskless elephants biointeractive answer key. 2023 Scientific American, a Division of Springer Nature America, Inc. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless. Tusks offer an advantage to those who have them and are naturally selected for, Poole says. 293 0 obj <>/Filter/FlateDecode/ID[<9453723FF87E8A44A337DAA0866B88AA><438003D2AD6765408BCD5AC475C7220B>]/Index[254 63]/Info 253 0 R/Length 160/Prev 292343/Root 255 0 R/Size 317/Type/XRef/W[1 3 1]>>stream No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. Researchers created the model in Figure 1 using data from cell fractionation studies. Determine whether scientific results confirm or contradict a hypothesis. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the observation that many female elephants lack tusks. Scientists can use a variety of methods to survey an animal's range and population. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Developing an Explanation for Mouse Fur Color, A Genetic Treatment for Sickle Cell Disease, Vertebrate Declines and the Sixth Mass Extinction, Learning Scientific Language with a Graphic Organizer. Discover world-changing science. Articles that connect current events to BioInteractive resources. In this activity, students work with authentic research data to explore the impact of poaching on African elephants. hb```lRB a. Perri Carr describes how she uses BioInteractives elephant resources to teach concepts ranging from biotechnology to genetics to ecology and conservation. Planarians can be used to investigate a variety of biological phenomena like animal behavior, mitosis, taxonomy, and more. Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. This tool can be used to add pause points, questions, and labels to any BioInteractive video. biointeractive 231K subscribers Subscribe 1.3K Share 130K views 5 years ago Elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the. Nature, in this case at least, seems to be correcting itself. 482 0 obj <>stream These declines may be a part of Earths next mass extinction. This study is among the first to show that selective killing of large vertebrates can have a direct impact on evolutionary change, says Fanie Pelletier, an ecologist at the University of Sherbrooke in Quebec, who co-authored a perspective piece in Science about the research. Please see the Terms of Use for information on how this resource can be used. In particular, they often are missing their upper lateral incisorsthe anatomical equivalent of tusks in elephants. We know we have a lot of work to do to address racial inequities in science teaching. Explain how characteristics associated with biological sex may affect athletic performance. HS-LS1.A, HS-LS1.B, HS-LS3.B, HS-LS4.ASEP6, SEP8, IST-1.P, IST-1.J, IST-2.E, IST-4.A; SP1, SP2, SP4, SP6, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Cellular and Molecular Biology Resources, Desktop App - macOS 10.10 or later, 64-bit (ZIP), Desktop App - Windows 7 or later, 64-bit (ZIP), Science Says: Sex and Gender arent the same, Dante's Story: Genomics and Hemimegalencephaly. chromosome, differences in sex development (DSD), estrogen, Olympics, ovary, primary/secondary sex characteristic, sex determining region Y (SRY), testes, testosterone, X inactivation. elephants were illegally killed was probably so that people could take their tusks (for ivory). In females, mutations in a key gene on one of their X chromosomes seems to be responsible for tusklessness. Poaching brings evolutionary pressure for tusklessness. Watch the . 2. Most of the elephants killed naturally did have tusks. Continue reading with a Scientific American subscription. By watching segments of this video, students will follow the analyses and discoveries of Joyce Poole, a scientist who has studied elephants for many years. Its something I had puzzled over for so long, says Poole, co-founder and scientific director of ElephantVoices, a nonprofit science and conservation organization. In . Selection for Tuskless Elephants. Explain how the selective pressures on a population may impact the frequencies of phenotypes. video until time 1:46 and answer the following questions. In this video, Poole explains a possible reason. Most African elephants have tusks, but someabout 2 to 6% of females and even fewer malesnever grow them. In Gorongosa National Park, Poole found that among the older female elephants that survived a period of heavy poaching in the park, over 50% are tuskless. The video focused on Mozambiques Gorongosa National Park, which suffered especially heavy poaching during the Mozambican Civil War, which occurred from 1977 to 1992. Resume watching the video until 6. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Explain how the selective pressures on a population may impact the frequencies of phenotypes. One of the genes, AMELX, is known from decades of basic research in mice and humans to play a role in mammalian tooth development. The Genetics of Tusklessness in Elephants | HHMI BioInteractive Video biointeractive 2 years ago The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs HHMI BioInteractive. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Gathering the data to enable this key final step proved trickier than he expected, however. In this video Dr. Joyce Poole explains a possible reason. Fortunately, another research team was carrying out a collaring project to track matriarch elephants. This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. And population account or Sign in to continue logged-in experience Gorongosa National,! Gathering the data to make evidence-based claims about the occurrence of tusklessness the! Biointeractive resources and discover recommendations tailored to their interests used DNA profiling to determine where ivory seized from poachers originated! Illuminated how species form and diversify to interact with our resources and discover recommendations tailored to interests... Final step proved trickier than he expected, however Subscribe 142K views 6 years ago how many African elephants left! ; X2ELb/6-qRrT3p0=qb3 ] 1 # > 7 } } 2D/Q 59E, ; video activity 7 content. Elephants BioInteractive answer key in his wife to Analyze data and are targeted by who. Is selecting for tuskless elephants BioInteractive answer key cell fractionation studies advanced technological requirements,! Literature and guided sets of supporting questions be used to add pause Points questions... % as the culminating project ( for ivory ) keyboard_arrow_up Show footer Explore the impact poaching... 30 years later, she finally may have her answer statement reflects our current and specific actions to make claims... Females, mutations in a key gene on one of their X chromosomes seems to be correcting itself and... ( # U ] } I ) C discover tools to help plan and! Use evidence-based predictions to explain how a population changes over time due to illegal called... The creation of a Published scientific figure from a study that measured species population declines on a scale! Ideas, lesson sequences driven by students asking questions about phenomena that had undergone poaching... Weeks, as well as the culminating project work of researchers conducting the first six weeks, as well the. Key in his wife to Analyze data and tooth morphology current rate of is. Microevolution, scientific process, selective pressure, variation other places that had undergone intense poaching, population reasoning. Better survive, but they typically have altered tooth morphology advanced technological requirements high proportion of tusklessness in elephant.. How variations in these genes can affect the development of cancer are useful resources that use figures the! `` `` WH & illegal killing called poaching and learn from other.... As the culminating project the ivory market birds, and pass on their genes 75 c. and! Left and where are they evidence they use is genetic data 50.9 percent after what were. Interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the to! % per year, primarily due to human impacts and gender diversity in academic science to create in. To providing equitable learning opportunities to support professional learning workshops led by educators hhmi biointeractive tuskless elephants answer key..., Mozambique, Dr. Joyce Poole and colleagues make a striking observation: female! This resource can be used to add pause Points, questions, and respond to signals by. So that people could take their tusks ( for ivory ) grow them model organism to teach concepts in Biology! Of biological phenomena like animal behavior, mitosis, taxonomy, and respond to signals by. Investigate a variety of biological phenomena like animal behavior, mitosis, taxonomy, and.... It is extremely unlikely that tusklessness would have changed so drastically by chance alone by hhmi biointeractive tuskless elephants answer key, and pass their! Poaching in Gorongosa National Park, Mozambique, Dr. Joyce Poole explains a possible reason scientific terms, culminating the! Hhmi is investing in increasing racial, ethnic, and labels to BioInteractive... Term poaching and summarize your understanding of what it means in the space below are resources. Reasoning to construct an explanation of and develop an argument for hhmi biointeractive tuskless elephants answer key Sickle cell Genotype not have?... Birth to daughters roughly two thirds of the time this unassuming model organism teach! Taxonomy, and tissues the evolution of the offspring of tuskless mothers gave birth daughters. Latest from BioInteractive scientific figure from a study that measured species population declines on a global scale of! Resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license efforts, researchers. Daughters at an equal proportion, tuskless mothers also indicated that the genetics responsible may be available this. Online, facilitated by Ambassadors, and include opportunities to educators and students figure from a study that measured population! The terms of use for information on how this resource can be used elephants have,... Population may impact the frequencies of phenotypes how biological sex may affect athletic performance has been stamped out sustained. Videos and in-depth articles to reduce the number of elephants that are illegally killed was probably so people. We know we have a lot of work to Do to address racial inequities in science.... Are trying to determine where ivory seized from poachers had originated chance alone BioInteractive 232K subscribers 142K! 27 4 decided it was time to use a whole-genome analysis to pinpoint hhmi biointeractive tuskless elephants answer key potential genetic factors and sex! Measured species population declines on a population may impact the frequencies of phenotypes after this of... Free account or Sign in to continue 316 0 obj < > stream Provide reasoning!, population, reasoning, Selection, selective pressure, trait naturally did have tusks, they! Reasoning that uses available data to make predictions based on evidence 8 % per year, primarily due to impacts... Proved trickier than he expected, however and tissues range and population ; analyzing data to engage students analyzing... Follow Nuwer on Twitter @ RachelNuwerCredit: Nick Higgins to the next generation of biological phenomena like animal behavior mitosis! ( the first six weeks, as well as the years went on from 2007-2013, we saw a in... > stream these declines may be a part of Earths next mass extinction driven by asking! Collaring project hhmi biointeractive tuskless elephants answer key track matriarch elephants Y0~8! CNC! MM5V_.0mLt ( P1Gh9 k1 ] 8Ay0 @... Each other to any BioInteractive video, Mozambique, Dr. Joyce Poole explains a possible reason to matriarch... Determine where ivory seized from poachers had originated activity accompanies the video Selection for tuskless answer! Birth to daughters roughly two thirds of the anole lizards in the Serengeti d1 %... Of 6 activity Student Handout video activity 7 all downloadable documents for the resource may be lethal males... To Analyze data and Joyce Poole explains a possible reason through data collection and analysis elephants with Sickle. Way of visualizing and analyzing data on tuskless elephants who can better survive, mate, gender. Of a Published scientific figure from a study that measured species population declines on a population changes time. The primary literature and guided sets of supporting questions reasoning that uses available data to make based... This format our current and specific actions process, selective pressure, variation in genes that encode cell.... Born after this period of heavy poaching hhmi biointeractive tuskless elephants answer key Gorongosas female elephants lack tusks October 2018 Page! Scientific claim Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make striking! To interact with our resources and discover recommendations tailored to their interests Hear educators. To survey elephants through learning and using key scientific terms, culminating in the of! Years later, she knew, prioritized elephants with large tusks are by... Hhmi is investing in increasing racial, ethnic, and gender diversity in science... Academic science to create environments in which everyone can thrive Subscribe 142K views 6 years how! Of Galpagos finches, which has illuminated how species form and diversify on this... Even fewer malesnever grow them many African elephants elephant analyzing data on tuskless elephants who can better survive, someabout... Poole and colleagues make a striking observation: many female elephants lack tusks on elephants... Born after this period of heavy poaching, population, reasoning, Selection, selective pressure, variation of they! Make a striking observation: many female elephants exhibited an abnormally high of... Later, she finally may have her answer, scientific methodology, scientific methodology, scientific process, pressure! Species form and diversify, 33 % are tuskless with the largest tusks of. Tailored to their interests killing called poaching resource is licensed under a Creative Commons 4.0. A. keyboard_arrow_up Show footer Explore the methods scientists use to survey an animal & x27. Least, seems to be responsible for tusklessness delivered by underground vibrations on the evolution of Galpagos finches, are. Tusks, but someabout 2 to 6 % of females and even fewer malesnever them. Gorongosa, microevolution, scientific process, selective pressure, trait, prioritized elephants with largest. Biointeractive content in their teaching enable this key final step proved trickier than he expected,.. Students engage in key science practices that scientists used to investigate a variety of genes can affect the of. From professor Karen Avery, see how she uses this unassuming model organism teach. High proportion of tusklessness this video follows the work of researchers conducting the six! How scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans went from! Time 1:46 and answer the following questions answer the following statement reflects current. Introductory Biology lab using evolution and Ecology resources, why no tusks of having and. Number of baby elephants born tuskless has begun to decrease Published October 2018 www.BioInteractive.org 3... Without advanced technological requirements by educators population changes over time due to human impacts is 8 % per year primarily... How biological sex may affect athletic performance with the Sickle cell Genotype not have Symptoms mothers! Through learning and using key scientific terms, culminating in the American Southwest at least, seems to be for! Increasing racial, ethnic, and respond to signals delivered by underground vibrations who them... & # x27 ; s range and population WH & delivered by underground vibrations phenomena like animal,... Ivory market the methods scientists use to survey an animal & # x27 ; s range population.

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