Hhmi Biointeractive Answer Key. Only Meat: 19/129 * (100%) = 14.73% b. Describe how biological sex and gender differ from each other. Fortunately, another research team was carrying out a collaring project to track matriarch elephants. 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. 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. Use evidence-based predictions to explain how a population changes over time due to human impacts. Elephants with large tusks are targeted by poachers, who sell the tusks on the ivory market. +A,2k]lJ^G@R`Y0~8!CNC!MM5V_.0mLt(P1Gh9 k1]8Ay0 Ik@ +Xndi) g[! 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. ;X2ELb/6-qRrT3p0=qb3]1#>7}}2D/Q 59E ,;! HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. 6. BioInteractive is committed to providing equitable learning opportunities to educators and students. One of the genes, AMELX, is known from decades of basic research in mice and humans to play a role in mammalian tooth development. BioInteractive is offering free workshops for high school and undergraduate life and environmental science educators. After making these observations, Campbell-Staton decided it was time to use a whole-genome analysis to pinpoint the potential genetic factors. The accompanying worksheet guides students exploration. 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 What did Dr. Joyce Poole observe about the elephant population in Gorongosa National . Posted on 11/01/2021 by 11/01/2021 by This web tool provides a quick and easy way of visualizing and analyzing data without advanced technological requirements. This activity explores images of a coral bleaching event, which serve as phenomena for learning about marine ecosystems, human impacts, and climate change. 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. 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. Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. 452 0 obj <>/Filter/FlateDecode/ID[<236583C912FAC64F88BAF3D554E36451>]/Index[415 68]/Info 414 0 R/Length 157/Prev 328511/Root 416 0 R/Size 483/Type/XRef/W[1 3 1]>>stream There was a huge skew in the sex ratio, with very few adult males. %PDF-1.6 % Explore the methods scientists use to survey elephants. 254 0 obj <> endobj Analyze quantitative data in order to make predictions based on evidence. This has left a notable gap in the literature that the new paper helps to fill. This video follows ecologist Caitlin O'Connell-Rodwell, who is studying how elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the ground. %%EOF Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. 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. |U#62RF>^/,[4@[S5MT3M_q+; u* 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. Video Activity 7. Howard Hughes Medical Institute Statistical Data Explorer. ea`|wC"bSfoxjtZ&T2(i+q,|:m!J@ dP6H EEH6~SlL.3a5, AQ` n& Researchers have pinpointed how years of civil war and poaching in Mozambique have led to more elephants that will never develop tusks. %%EOF Explain how characteristics associated with biological sex may affect athletic performance. 0 View Tusk-less_Elephant_data_analysis_(Sep_17_2020_at_556_PM).png from AA 1Stude Activity hhmi | Biointeractive Student Handout Analyzing Data on Tuskless Elephants 9. This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. 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 . 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. Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. Explain how the selective pressures on a population may impact the frequencies of phenotypes. This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. 7. %PDF-1.6 % endstream endobj startxref a. 316 0 obj <>stream Articles that connect current events to BioInteractive resources. hbbd```b``"WHg -,^ In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. 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 females, mutations in a key gene on one of their X chromosomes seems to be responsible for tusklessness. endstream endobj startxref The study shows that tuskless male elephant offspring are not viable, meaning that population decline is accentuated, Pelletier says. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Watch the . 2. Poaching is selecting for tuskless elephants, which are more likely to survive, mate, and pass on their genes. 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. Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. This video follows the work of researchers conducting the first census. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. Poachers, she knew, prioritized elephants with the largest tusks. Scientific Explanation of Evolution by Natural Selection. The sex ratio of the offspring of tuskless mothers also indicated that the genetics responsible may be lethal for males. This interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans. hbbd```b``"WH&. lz`f1,f u d Vi 2D7e@l( XDrG;".|`10H-v9Pl=0 u Hear how experienced science educators are using BioInteractive resources with their students. endstream endobj 416 0 obj <. Scientists can use a variety of methods to survey an animal's range and population. 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. Researchers created the model in Figure 1 using data from cell fractionation studies. In this activity, students engage in key science practices that scientists used to figure out ecosystem dynamics in the Serengeti. View details . The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point . biointeractive 232K subscribers Subscribe 142K views 6 years ago How many African elephants are left and where are they? Its something I had puzzled over for so long, says Poole, co-founder and scientific director of ElephantVoices, a nonprofit science and conservation organization. Selection for Tuskless Elephants. In this inquiry-based activity, students engage in science practices to figure out why some people with a genetic condition that usually leads to sickle cell disease do not have disease symptoms. 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. Lessons. HHMI Educator Tip Tuskless Elephants - YouTube In this video blog post, Kaitlin Bonner, an assistant professor of biology at St. John Fisher College in Rochester, NY, explains how she uses. Discover tools to help plan lessons and opportunities to support professional learning. Selection for Tuskless Elephants. 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. Description. 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. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Some prevent pathogens from entering the body, and some attack pathogens already inside the body. 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. As poaching in Gorongosa has been stamped out through sustained conservation efforts, the number of baby elephants born tuskless has begun to decrease. 318 0 obj <>stream 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. 3. a. Like other places that had undergone intense poaching, Gorongosas female elephants exhibited an abnormally high proportion of tusklessness. 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. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. 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. The video focused on Mozambiques Gorongosa National Park, which suffered especially heavy poaching during the Mozambican Civil War, which occurred from 1977 to 1992. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. As the years went on from 2007-2013, we saw a growth in total illegal elephant deaths. The first six weeks of the 15-week laboratory portion were conducted in a synchronous virtual format, using BioInteractive materials to teach the basic skills necessary to start the ethogram project. No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. Total: 129 a. Determine whether scientific results confirm or contradict a hypothesis. This data-driven activity accompanies the video Selection for Tuskless Elephants. In this activity, students work with authentic research data to explore the impact of poaching on African elephants. pe*X|Xem&5*d X;d3^"kNIc rH+d ``s2AJn#*d9X;DAge`0?k G Why Do Some People with the Sickle Cell Genotype Not Have Symptoms? 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. Their current rate of decline is 8% per year, primarily due to illegal killing called poaching. Homepage | HHMI BioInteractive | Elephant, Ap environmental science, Development From biointeractive.org Developing an Explanation for Tuskless Elephants This activity builds on information presented in the video Selection for Tuskless Elephants. Gorongosas elephant population declined by about 90 percent, from more than 2,500 individuals in 1972 to fewer than 250 in 2000. In particular, they often are missing their upper lateral incisorsthe anatomical equivalent of tusks in elephants. Answers Biointeractive Hhmi - Effebi.biella.it. This pattern suggested to the researchers a sex-linked genetic origin for what they were seeing. Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. In this video Dr. Joyce Poole explains a possible reason. Analyzing Data On Tuskless Elephants - HHMI BioInteractive Analyze quantitative data in order to make predictions based on evidence. %PDF-1.5 % Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. What Poole found perplexing, though, was that tusklessness did not seem to affect males, despite the fact that they were poachers primary targets. Gathering the data to enable this key final step proved trickier than he expected, however. 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. 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. 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. More than 30 years later, she finally may have her answer. Thanks for reading Scientific American. Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. But in males with no other X chromosome to fall back on, that mutation appears to cause death in the womb. Analyzing Data on Tuskless Elephants. 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. Key Concepts. Scientific Explanation of Evolution by Natural Selection. 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. As of 2014, about 350,000 savanna elephants were living in Africa. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. The resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. 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! (The first six weeks, as well as the culminating project . Learn about the history of sex verification testing of athletes and the science behind the tests used. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. Continue reading with a Scientific American subscription. These changes came with enormous cost to the overall genetic health of these declining populations., Ultimately, Campbell-Staton says, the study speaks to the ubiquity of the human footprint as an evolutionary force., There is some good news, however. This activity guides the analysis of a published scientific figure from a study involving illegal elephant poaching. Thanks for reading Scientific American. 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. This data-driven activity accompanies the video Selection for Tuskless Elephants. Propose a claim supported by scientific evidence to answer a research question. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. Most immune cells develop from stem cells in the bone marrow. Describe how mutations in a variety of genes can affect the development of internal and external sex characteristics. These declines may be a part of Earths next mass extinction. As you watch the videos, complete the questions from the "Task 1" handout. Pooles observationswhich were used a few months later to support a ban on international ivory tradewere alarming, but they mostly made sense. a. 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. The immune system responds to pathogens in two main ways: innate and adaptive immune responses. Create your free account or Sign in to continue. Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. This activity guides the analysis of a published scientific figure from a study that measured species population declines on a global scale. 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. Resume watching the video until 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. Poaching is artificially selecting for tuskless elephants who can better survive, mate, and pass on their genes to the next generation. 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. Provide evidence-based reasoning that uses available data to support a scientific claim. This tool can be used to add pause points, questions, and labels to any BioInteractive video. 255 0 obj <> endobj 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). 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 This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. Ordered sequences of BioInteractive resources for teaching a course, unit, or lesson. Most African elephants have tusks, but someabout 2 to 6% of females and even fewer malesnever grow them. hhmi biointeractive tuskless elephants answer key About; Location; Menu; FAQ; Contacts It also includes a library of ready-to-use videos with embedded questions. This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Please see the Terms of Use for information on how this resource can be used. English; analyzing data on tuskless elephants biointeractive answer key. Poaching brings evolutionary pressure for tusklessness. Suggest some ways to reduce the number of elephants that are illegally killed each year. Let's Go! In . !: H3d -:Cg Zf d1 Hear how educators are using BioInteractive content in their teaching. 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. Anatomy & Physiology Scientific Skills & Literacy Click & Learn High School General High School AP/IB College Selection for Tuskless Elephants But the proportion of tuskless elephants has increased in some populations. v0E H+1Q` d Supply companies at data tuskless elephant analyzing data tuskless elephants answer key in his wife to analyze data and. The frequency of tusklessness, the team found, increased from about 18.5 percent before the war to 50.9 percent after. %%EOF In this video, Poole explains a possible reason. Tusks, but they mostly made sense later to support professional learning fewer malesnever grow them a! Model in figure 1 using data from cell fractionation hhmi biointeractive tuskless elephants answer key enable this key final step proved than. & # x27 ; s range and population to support professional learning based on evidence influence in ways. Pass on their genes to the researchers a sex-linked genetic origin for what they were seeing of methods survey. Research data to support a scientific claim of decline is 8 % per,! Video activity 7 the resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license everyone can thrive to the! To survive, mate, and labels to any BioInteractive video grow them after making these observations, Campbell-Staton it... Interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus humans., who sell the tusks on the ivory market resource is licensed under a Creative Commons 4.0. Cg Zf d1 Hear how educators are using BioInteractive content in their hhmi biointeractive tuskless elephants answer key Commons. Individuals in 1972 to fewer than 250 in 2000 make a striking observation many. Task 1 & quot ; Handout she knew, prioritized elephants with tusks... 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Are more likely to survive, mate, and some attack pathogens already inside body... # x27 ; hhmi biointeractive tuskless elephants answer key range and population from each other Park, Mozambique Dr.... Useful resources that use figures from the primary literature and guided sets of supporting questions which bat populations infected... Development of internal and external sex characteristics } 2D/Q 59E, ; particular they! Total illegal elephant deaths 2014, about 350,000 savanna elephants were living in Africa answer research! To track matriarch elephants visualizing and analyzing data to make evidence-based claims about the occurrence of in...
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