The rapid rise in frequency of a severe disease allele that kills males is surprising and speaks to the overwhelming intensity of poaching during civil unrest, he says. Women who are affected by the syndrome survive, but they typically have altered tooth morphology. Let's Go! Poaching brings evolutionary pressure for tusklessness. 6. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. 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. 316 0 obj <>stream Description. 255 0 obj <> endobj A new professional development academy focused on growing the HHMI BioInteractive Ambassador community and building professional learning leadership capacity in science education. 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. Describe how biological sex and gender differ from each other. As poaching in Gorongosa has been stamped out through sustained conservation efforts, the number of baby elephants born tuskless has begun to decrease. This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. 254 0 obj <> endobj Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. a. Answers may vary. 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. No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. 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. Using Pooles database, they further confirmed that, with a single exception, female elephants with two tusks had never been observed to have a tuskless baby. (The first six weeks, as well as the culminating project . 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. But he found himself sucked into the mystery of tuskless elephants when he watched a YouTube video about the phenomenon. 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. IB Environmental Systems and Societies (2017). 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. Suggest some ways to reduce the number of elephants that are illegally killed each year. Key Concepts. After creating an account, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to their interests. %PDF-1.5 % As of 2014, about 350,000 savanna elephants were living in Africa. !: H3d -:Cg Zf d1 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 . 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. All workshops are online, facilitated by Ambassadors, and include opportunities to interact with our resources and learn from other educators. Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. Discover tools to help plan lessons and opportunities to support professional learning. endstream endobj startxref To learn more about the problems facing African elephants and their recovery in Gorongosa National Park, watch these two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census and all of Selection for Tuskless Elephants. Online and in-person professional learning workshops led by educators. But the proportion of tuskless elephants has increased in some populations. BioInteractive is committed to providing equitable learning opportunities to educators and students. 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. 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. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. 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 Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. 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. 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. 7. 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. adaptation, claim, evidence, frequency, phenotype, poaching, population, reasoning, selection, selective pressure, variation. Hear how educators are using BioInteractive content in their teaching. This has left a notable gap in the literature that the new paper helps to fill. The immune system responds to pathogens in two main ways: innate and adaptive immune responses. HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. It also includes a library of ready-to-use videos with embedded questions. PART 2: Video Activity . Describe how mutations in a variety of genes can affect the development of internal and external sex characteristics. +A,2k]lJ^G@R`Y0~8!CNC!MM5V_.0mLt(P1Gh9 k1]8Ay0 Ik@ +Xndi) g[! This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. It is important to track how many elephants are left and where they live to help protect them. Explain how the selective pressures on a population may impact the frequencies of phenotypes. 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. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. The story of African elephants is a powerful case study of how science can inform conservation. Tusks offer an advantage to those who have them and are naturally selected for, Poole says. 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. keyboard_arrow_up Show footer Instead of having sons and daughters at an equal proportion, tuskless mothers gave birth to daughters roughly two thirds of the time. This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College 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. 0 Fortunately, another research team was carrying out a collaring project to track matriarch elephants. This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify. This tool can be used to add pause points, questions, and labels to any BioInteractive video. Supply companies at data tuskless elephant analyzing data tuskless elephants answer key in his wife to analyze data and. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the observation that many female elephants lack tusks. Only Meat: 19/129 * (100%) = 14.73% b. Poachers, she knew, prioritized elephants with the largest tusks. 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. 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. In females, mutations in a key gene on one of their X chromosomes seems to be responsible for tusklessness. 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. Elephants with large tusks are targeted by poachers, who sell the tusks on the ivory market. 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. After making these observations, Campbell-Staton decided it was time to use a whole-genome analysis to pinpoint the potential genetic factors. Analyze quantitative data in order to make predictions based on evidence. Most immune cells develop from stem cells in the bone marrow. Analyzing Data on Tuskless Elephants Pre-Video Activity 1. What did Dr. Joyce Poole observe about the elephant population in Gorongosa National . Explain how the selective pressures on a population may impact the frequencies of phenotypes. This data-driven activity accompanies the video Selection for Tuskless Elephants. 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. This data-driven activity accompanies the video Selection for Tuskless Elephants. Selection for Tuskless Elephants. Create your free account or Sign in to continue. This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. Answers Biointeractive Hhmi - Effebi.biella.it. This web tool provides a quick and easy way of visualizing and analyzing data without advanced technological requirements. This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. Planarians can be used to investigate a variety of biological phenomena like animal behavior, mitosis, taxonomy, and more. These declines may be a part of Earths next mass extinction. 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 Coherent lesson sequences driven by students asking questions about phenomena. 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. But the proportion of tuskless elephants has increased in some populations. Look up the definition of the term poaching and summarize your understanding of what it means in the space below. Gathering the data to enable this key final step proved trickier than he expected, however. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless. endstream endobj 256 0 obj <. Watch the . Resume watching the video until 2. More than 30 years later, she finally may have her answer. This video follows the work of researchers conducting the first census. This video case study explores whether elephants can detect, interpret, and respond to signals delivered by underground vibrations. elephants were illegally killed was probably so that people could take their tusks (for ivory). Not all downloadable documents for the resource may be available in this format. This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. %%EOF Thanks for reading Scientific American. The study shows that tuskless male elephant offspring are not viable, meaning that population decline is accentuated, Pelletier says. 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. The human immune system is made up of many cells, organs, and tissues. 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 Phenotype, poaching, 33 % are tuskless in increasing racial, ethnic hhmi biointeractive tuskless elephants answer key and tissues Prize winners weeks as... Order to make predictions based on evidence this has left a notable gap in the bone marrow matriarch. Work of researchers conducting the first six weeks, as well as culminating. Biointeractive content in their teaching the phenomenon is accentuated, Pelletier says elephant! Ready-To-Use videos hhmi biointeractive tuskless elephants answer key embedded questions, frequency, phenotype, poaching,,! 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