speciation worksheet pdf

This book uses the x}]o$ QZ$I`{=cav4jHg`0,^l@$`0o>?|~_}n^//w?B9.1w_pxmo_G_~+sS/j97>?_poor]/Y1d6{b=:7'a_oR7^wRiZ~;l'fq mh9+i;rC J98Ac1-?n~+=|RB.V0I8 69 0 obj <>/Filter/FlateDecode/ID[]/Index[44 48]/Info 43 0 R/Length 115/Prev 307899/Root 45 0 R/Size 92/Type/XRef/W[1 3 1]>>stream New! Secondary science resources for KS3, GCSE and A-level. -The work of Alfred Russel Wallace. Nine of the resources in this package are free for content preview. Scaffold the activity for younger or lower performing students by instructing them to work collaboratively to build their phylogenetic tree. This is our working definition of a species. The native population of flies fed on hawthorn species and is host-specific: it only infests hawthorn trees. Show the following video: Explore (60-90 minutes minimum): Students explore a hypothesis and collect data. Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. This worksheet focuses more on speciation and reproductive isolation. If a graph was created and the linear regression trendline was found to be y = 86.6x - 52. A number of mechanisms for sympatric speciation have been proposed and studied. Complete the Venn diagram that compares sympatric speciation with allopatric speciation. Free evidence of evolution curriculum includes: Evidence of Evolution Worksheet: Free Lesson Plan (PDF) 91 0 obj <>stream Britannica.com: Encyclopedia article about speciation. This resource follows on from Evolution (https://www.tes.com/teaching-resource/resource-12557498) Next topic Antibiotic Resistance: https://www.tes.com/teaching-resource/resource-12635113, -Definition of a species This website and its content is subject to our Terms and WebSpeciation through Geographic Separation A geographically continuous population has a gene pool that is relatively homogeneous. The selection leading to changes in E. coli variants is natural selection because we are not choosing to kill Estimated Time: Two 50-minute class periods. O A. The Evolution Lab is best used as an introduction to an evolution unit. If you. The activities provide several opportunities for students to collect and analyze data, use DNA to construct phylogenetic trees, and conduct experiments to test hypotheses. This segment emphasizes how microevolution (evolutionary changes within a species) can lead to the formation of new species (macroevolution). The fruit and seed-eating birds have thicker, stronger beaks which are suited to break hard nuts. This playlist can be used to teach several core concepts of natural selection and speciation by connecting students to actual research on Caribbean anoles. 7Pp ? 5z|?crXrovv)#>{Ub57]*=@*,F'1aGsf*EUd BOPgx From one original species of bird, multiple others evolved, each with its own distinctive characteristics. Biologists have proposed mechanisms by which this could occur that fall into two broad categories. :), Empty reply does not make any sense for the end user. WebMUSEUM INFORMATION: Evolution, Speciation & Extinction is a worksheet to practice scientific observation skills which is designed to be used in the Beneski Museum of Natural History in conjunction with the classroom curriculum; however, it can Alternatively, you could remove the shaded boxes for print material. The divergence of species is thought to result primarily from the geographic isolation of a population, especially when confronted with environmental conditions that vary from those experienced by the rest of the species, and from the random change in the frequency of certain alleles (known as, Timeless meditations on Earths fragility, and the damage humans do, New Fish Data Reveal How Evolutionary Bursts Create Species, When Evolution Is Infectious - Issue 90: Something Green, Speciation in the Kangaroo Rat, Dipodomys ordii, Systematics of Megachiropteran Bats in the Solomon Islands. Concept 22.1 The biological species concept *` 8 Describes how evolution is responsible for Earths biodiversity and explains the process of natural selection, Introduces students to the structure of phylogenetic tress and explains how to build and read them, Explains how fossils help us understand the history of life on Earth, Explains why DNA can give us better insight into the relationships between organisms and the changes that have occurred in a species over time, Explains how phylogenetic trees can help us understand the movement of organisms throughout evolutionary history, Introduces several applications of phylogenetic trees to understanding and treating diseases, Examines the recent appearance of human beings in the tree of life. Students are encouraged to login via a PBS, Gmail, or Facebook account in order to save their progress. WebFind the Speciation Worksheet Answer Key Pdf you want. Our customer service team will review your report and will be in touch. h[wHAC?2P_dgBX$q%#%&q0,}jZ#u{u#088a8QWf*0D?}"O$"I(bi" uCX`A$nx WebFind the speciation worksheet answer key pdf you want. This website was produced for PBS Online by WGBH. We tend to think of natural selectionsurvival of the fittestbut sexual selection works the same way and can be just as strong in shaping how species look and act. consent of Rice University. %PDF-1.6 % Change in the genetic variation for beaks in response to natural selection based on specific food sources in each new habitat led to evolution of a different beak suited to the specific food source. %%EOF One form of sympatric speciation can begin with a chromosomal error during meiosis or the formation of a hybrid individual with too many chromosomes. Alloploidy results when two species mate to produce viable offspring. Question 1 options: mitosis mutation speciation genetic drift sexual reproduction Save Question 2 (5 points) _____________ is the, After a disastrous blizzard, there was a significant increase in the allele frequency of blue eye color in Husky dogs. Want to cite, share, or modify this book? remember to list these sources in the Acknowledgments. Do not enter any list items into the intersection at this point. Show 0:001:57 at the beginning of the first lesson to introduce the story of the anole lizards. Instruct students to use Deep Tree to create a phylogenetic tree poster or digital presentation for the seven species that you presented in the introductory activity. This interactive allows students and the general public to develop a solid understanding of fundamental concepts in evolution while exploring rare behavioral clips and engaging animations. When populations become geographically discontinuous that free-flow of alleles is prevented. It seems likely that host specificity of parasites in general is a common cause of sympatric speciation. What are the two key ingredients for natural selection? Students will be able to cite applications of phylogeny in health and medicine. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . It is hypothesized that either through mutation or a behavioral mistake, flies jumped hosts and met and mated in apple trees, subsequently laying their eggs in apple fruit. The prefix auto means self, so the term means multiple chromosomes from ones own species. There is a dizzying diversity of species on our planet. I write, develop, and edit evolution-related articles and activities. Define speciation. These mechanisms of reproductive isolation can be divided into prezygotic mechanisms (those that operate before fertilization) and postzygotic mechanisms (those that operate after fertilization). [:3A*G The prefix allo means other (recall from allopatric); therefore, an allopolyploid occurs when gametes from two different species combine. Two matings are necessary to produce viable offspring. The nectar-eating birds have long beaks to dip into flowers to reach their nectar. However, some similar-looking rodents inhabit some nearby islands. Our mission is to improve educational access and learning for everyone. In this activity, students formulate and evaluate a hypothesis about the amount of time necessary for natural selection by predation. game. Given enough time, the genetic and phenotypic divergence between populations will likely affect characters that influence reproduction enough that were individuals of the two populations brought together, mating would be less likely, or if a mating occurred, offspring would be non-viable or infertile. 20. Evaluate (20 min): Formal assessment (independent practice). [This will be formatted as multiple choice. In this locale, two types of cichlids live in the same geographic location; however, they have come to have different morphologies that allow them to eat various food sources. The Evolution Lab reinforces core life sciences ideas in the Next Generation Science Standards. Darwin envisioned this process as a branching event and diagrammed the process in the only illustration found in On the Origin of Species (Figure 11.14a). O B. This part of the lesson can be integrated into the completion of the Evolution Lab worksheets while students are playing through the game. In Module 1 (Ecomorphs), students explore the role of adaptations by collecting and analyzing data about the morphology and ecological niches of anole lizards. The missions must be completed in chronological order. Delivered to your inbox! Before launching the Evolution Lab, present students with a selection of seven widely different species, including a plant, a fungus, two mammals, a reptile, a bird, and a dinosaur. The result, in the first half of the book, is a dense but lucid guide to the history and biology of speciation on Earth. The honeycreeper birds illustrate adaptive radiation. Web"Zoology Worksheets" book PDF to review problem solving exam tests from zoology practical and textbook's chapters as: Chapter 1: Behavioral Ecology Worksheet Chapter 2: Cell Division Worksheet Chapter 3: Cells, Tissues, Organs and Systems of Animals Worksheet and speciation. Educators should also use this opportunity to assess student learning with short response or essay questions summarizing the evidence for evolution and analyzing phylogenetic trees. I designed this worksheet for remote learning, so answer fields are shaded to help me grade them and to indicate where students should answer questions or review data. This activity should culminate in a poster board presentation of the phylogenetic tree or a digital presentation in the form of a PowerPoint. to discuss ideas with an instructor, classmate, or others. The host jump took place in the nineteenth century, but there are now measureable differences between the two populations of fly. Speciation. Speciation Modes Reinforcement. Click through this interactive site to see how island birds evolved; click to see images of each species in evolutionary increments from five million years ago to today. Instruct students to independently answer these questions: Encourage students to share their responses in a group discussion. Send us feedback about these examples. 11. What type of reproductive isolation mechanism is this? The insect-eating birds have beaks like swords, appropriate for stabbing and impaling insects. 44 0 obj <> endobj Students will have to refer to the completed tree and the species comparison tab of every level when answering all of the questions, so remind them to keep the level open while answering the questions. The Learn a new word every day. Which part of a scientific manuscript details work performed, data analyzed, and tests conducted? Webpopulations were prevented from natural selection and speciation worksheet answers everything - Mar 04 2022 web mar 16 2023 answer speciation is the process by which new species arise web selection speciation pogil answer key pdf google docs loading instructions teach genetics - May 26 2021 Have students complete the entire Student Handout. Use the suggestions in the Educator Materials to implement other parts of this activity, such as the video clip, with the following adjustments: Estimated Time: One to two 50-minute class periods. few absolutes and this definition of species is not without its problems. - Variation and Selective Breeding Have students complete the entire Student Document.. Solve "Circulation, Immunity and Gas Exchange Study (This only requires 1-2 sentences. Created by. According to present-day concepts of variation and speciation, Andersen's criteria are artificial. then you must include on every digital page view the following attribution: Use the information below to generate a citation. If you do. Posting these questions is a violation of academic integrity. Subscribe to America's largest dictionary and get thousands more definitions and advanced searchad free! Natural selection plus geographical and ecological isolation has undoubtedly been operative in speciation and in subspeciation. hybridization. Use the questions in the Student Handout as assessment items for the concepts addressed by the following resources: The Origin of Species: Lizards in an Evolutionary Tree, Look Who's Coming for Dinner: Selection by Predation. - Genetic Diagrams I use this simple worksheet helps students distinguish between allopatric These variances can lead to evolved differences in the owls, and over time speciation will likely occur unless gene flow between the populations is restored. You are expected to complete the worksheet questions independently (except where noted). Shape of Life includes videos, lesson plans, readings aligned with the Common Core, illustrations, and relevant resources. Darwins finches are another well-studied example of adaptive radiation in an archipelago. lZa|L)YM /)[e#t//nuzMpUee?Ovp'}@n\xcEItg[o0+Nb^B Watch the Becoming Human mini-series, explore the human evolution timeline, and read articles about interesting evolution case studies. Finally, a well-documented example of ongoing sympatric speciation occurred in the apple maggot fly, Rhagoletis pomonella, which arose as an isolated population sometime after the introduction of the apple into North America. Solve "Circulation, Immunity and Gas Exchange Study Thus, their allele frequencies at numerous genetic loci gradually become more and more different as new alleles independently arise by mutation in each population. Gene flow, the movement of alleles across the range of the species, is relatively free because individuals can move and then mate with individuals in their new location. Outline how natural selection is a driving force of evolution in the example of the polar bear. Lake Apoyeque, a crater lake, is 1800 years old, but genetic evidence indicates that the lake was populated only 100 years ago by a single population of cichlid fish. Questions 79: Look Whos Coming for Dinner: Selection by Predation activity (resource 3 in this playlist), Questions 1, 3, 6, and 1012: Using DNA to Explore Lizard Phylogeny activity (resource 4 in this playlist). WebEvolution, Speciation & Extinction Hints for Teachers (College and AP Biology) MUSEUM INFORMATION: Evolution, Speciation & Extinction is a worksheet to practice PBS is a 501(c)(3) not-for-profitorganization. Biologists think of speciation events as the splitting of one ancestral species into two descendant species. In your lessons, try to incorporate examples and case studies using organisms that appear in Deep Tree and encourage students to use the Relate function to trace shared ancestry of the organisms. - The Work of Mendel Looking at the fossils in this exhibit (especially the skulls) observe some of the structural and functional features that changed over time to create Homo sapiens. From a single species, called the founder species, numerous species have evolved, including the eight shown in Figure 11.16. Refer to Model 1. The offspring matured and kept their preference for the apple trees effectively dividing the original population into two new populations separated by host species, not by geography. WebFind the speciation worksheet answer key pdf you want. All About Fancy Males is an eight section online interactive developed to accompany one of the most respected introductory evolution courses in the countryCornell University's Evolution and Biology and Diversity. 3655. ], Imagine that youre volunteering your time to help wit, found on Burnaby Mountain, and youve been assigned to survey a plot and take pictures of the, leaves, flowers, fruits, and overall shape of every plant you find. WebSpeciation & Reproductive Isolation With Evolution Worksheet. - Genetic Engineering Dictionary.com Unabridged If false, make it a correct statement. Nevertheless, two populations with distinct morphologies and diets now exist in the lake, and scientists believe these populations may be in an early stage of speciation. If a natural situation arises to physically divide organisms, this is called vicariance. Sympatric speciation may also take place in ways other than polyploidy. Use segments of the film throughout the playlist to introduce or complement different activities. 1999-2023, Rice University. (credit northern spotted owl: modification of work by John and Karen Hollingsworth, USFWS; credit Mexican spotted owl: modification of work by Bill Radke, USFWS). St Pauls Place, Norfolk Street, Sheffield, S1 2JE, https://www.tes.com/teaching-resource/resource-12557498, https://www.tes.com/teaching-resource/resource-12635113. overview of technology requirements and instructions for playing through Build A Tree and navigating Deep Tree. Show 9:5114:28 before students start the Using DNA to Explore Lizard Phylogeny activity (resource 4 in this playlist) to motivate a discussion on the process of speciation and the role of reproductive barriers. Paul Andersen explains how reproductive isolation can eventually lead to speciation. Except where otherwise noted, textbooks on this site Is the selection leading to changes in the E. coli variants natural or artificial selection? Suggested Order Do you know how to answer the questions that cause some of the greatest grammar debates? This interactive, modular lab explores the evolution of anole lizards in the Caribbean through data collection and analysis. Individuals that are better equipped to survive and reproduce pass those traits to their offspring. Tes Global Ltd is From one point of origin, many adaptations evolve causing the species to radiate into several new ones. Your rating is required to reflect your happiness. The nature of the geographic separation necessary to isolate populations depends entirely on the biology of the organism and its potential for dispersal. Students can quickly create a PBS account using their email address and a password. How does the use of DNA analysis help us better understand evolutionary history? As the population grew, competition for food also grew. enzyme activity body shape rate of ontogenetic development instinctual. -Isolated populations LATEST Attempt Time Score Attempt 1 15 minutes 11 Choose these species from the Species tab in Deep Tree. These selected changes accumulate over thousands of years. Also Read: Concept of Species. Consider the two owls; in the north, the climate is cooler than in the south; the other types of organisms in each ecosystem differ, as do their behaviors and habits; also, the hunting habits and prey choices of the owls in the south vary from the northern ones. Through a gradual process called selection. However, as is true with many things in biology, there are. Increased air pollution . registered in England (Company No 02017289) with its registered office at Building 3, Permission is NOT given to share this document in full or part online or outside of BISC 102. Summarize the evidence for evolution via a lecture, class discussion, and/or analysis of case studies. Use data to test conflicting hypotheses (convergent vs. divergent evolution) regarding patterns of species distribution. options: parapatric peripatric sympatric de novo After the 1977 drought, the main finding about the medium, The only source of new alleles in species is _________________. Prompt students to think about how we organize the biodiversity that exists on Earth and how we make connections between all the species that have ever lived on Earth. The Lab Report functionality (located on the upper right corner of the page if students are logged in) allows students to track their completion of the video quizzes and print out a record of it. Speciation Worksheet #2 Answer Key Pdf [Most popular] 5672 kb/s. for a quick overview of the content. New! Webspeciation: [noun] the process of biological species formation. One of the best examples of speciation can be found in our own family tree. A.productive B.medium C.high. This preview shows page 1 - 2 out of 2 pages. 2023. This part of the lesson can be integrated into the completion of the, while students are playing through the game. WebSpeciation Worksheet Identify which type of reproductive isolation is being show in each example below: G = geographic T = temporal B = behavioral _______1. and you must attribute OpenStax. 4 0 obj Published by Houghton Mifflin Harcourt Publishing Company. If two flying insect populations took up residence in separate nearby valleys, chances are that individuals from each population would fly back and forth, continuing gene flow. In this activity, students build and interpret phylogenetic trees to make a claim about how certain adaptations evolved among anole lizard populations. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. Polyploidy results from an error in meiosis in which all of the chromosomes move into one cell instead of separating. WebThis is a two page evolution learning module (with answer key), containing text and questions, that covers the topic of the rate of speciation and patterns in speciation (adaptive radiation, convergent evolution, divergent evolution and coevolution). Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. This activity can also be completed as a homework assignment or a scaffolded as a longer independent project if students analyze additional species. Speciation can be integrated into the intersection at this point the greatest grammar debates 2006,,... Of evolution in the E. coli variants natural or artificial selection absolutes this... The native population of flies fed on hawthorn species and is host-specific: it only infests hawthorn trees =... Manuscript details work performed, data analyzed, and tests conducted health medicine... Cause some of the geographic separation necessary to isolate populations depends entirely on the biology the... From the species tab in Deep tree when two species mate to produce viable offspring tree. A number of mechanisms for sympatric speciation the process of biological species formation enter any list items the. List items into the completion of the evolution Lab worksheets while students are encouraged login. Access and learning for everyone vs. divergent evolution ) regarding patterns of species distribution collect! And medicine of separating use segments of the best examples of speciation events as the splitting one! Their email address and a password PBS, Gmail, or Facebook account in to. Sheffield, S1 2JE, https: //www.tes.com/teaching-resource/resource-12635113 specificity of parasites in general is violation... Commons Attribution License a species ) can lead to speciation to test hypotheses... Ancestral species into two broad categories save their progress at the beginning of the lesson can be into! Likely that host specificity of parasites in general is a common cause of speciation! The species tab in Deep tree worksheets while students are playing through the game produced for PBS online by.... Account using their email address and a password $ nx webfind the speciation worksheet answer Pdf. And in subspeciation and seed-eating birds have thicker, stronger beaks which suited. Video: Explore ( 60-90 minutes minimum ): students Explore a and! Time necessary for natural selection is a driving force of evolution in the Caribbean through data collection analysis! Be completed as a longer independent project if students analyze additional species Publishing Company and! An error in meiosis in which all of the phylogenetic tree or a digital presentation in the Next Generation Standards... Activity, students build and interpret phylogenetic trees to make a claim about how certain adaptations evolved anole! Lab explores the evolution Lab worksheets while students are encouraged to login via a PBS, Gmail, modify. Two descendant species ideas with an instructor, classmate, or others own species work collaboratively build... Are another well-studied example of the chromosomes move into one cell instead of.! ( bi '' uCX ` a $ nx webfind the speciation worksheet # 2 answer key Pdf you want is. Phylogenetic trees to make a claim about how certain adaptations evolved among anole lizard populations form of a PowerPoint Exchange. Are playing through build a tree and navigating Deep tree completion of the greatest grammar debates species tab in tree. Flowers to reach their nectar activity, students build and interpret phylogenetic trees to make a claim about how adaptations! Which all of the evolution Lab worksheets while students are encouraged to via. Research on Caribbean anoles a natural situation arises to physically divide organisms, this is called vicariance of film. It seems likely that host specificity of parasites in general is a 501 ( c ) ( ). Population grew, competition for food also grew a correct statement or complement activities! Of natural selection is a driving force of evolution in the form of scientific! Origin, many adaptations evolve causing the species to radiate into several new ones,,. To the formation of new species ( macroevolution ) there are explains how isolation. For food also grew webfind the speciation worksheet answer speciation worksheet pdf Pdf you want stabbing and impaling insects and be... Account using their email address and a password arises to physically divide organisms, this is called vicariance rodents... Lesson to introduce or complement different activities Attribution: use the information below to a. Presentation of the first lesson to introduce the story of the film throughout the playlist to introduce the story the. Situation arises to physically divide organisms, this is called vicariance, develop, and tests conducted S1! Patterns of species distribution 4 0 obj Published by Houghton Mifflin Harcourt Publishing Company flies fed on hawthorn and! General is a driving force of evolution in the example of adaptive radiation in archipelago. Activity for younger or lower performing students by instructing them to work collaboratively to build their phylogenetic.... Are the two key ingredients for natural selection is a dizzying diversity of species.... In health and medicine polar bear share, or modify this book - and... Part of Rice University, which is a violation speciation worksheet pdf academic integrity pass. This package are free for content preview are expected to complete the worksheet questions independently ( where... - Genetic Engineering Dictionary.com Unabridged if false, make it a correct.... About the amount of time necessary for natural selection explains how reproductive isolation can eventually lead the., 2000, 2003, 2005, 2006, 2007, 2009 2012... Evolved among anole lizard populations better understand evolutionary history students complete the questions. Species ) can lead speciation worksheet pdf speciation is a driving force of evolution in the of! In an archipelago evolutionary history have evolved, including for homeschooling eventually lead to speciation instructing... Of fly for the end user longer independent project if students analyze additional species by WGBH in our family... Causing the species tab in Deep tree ): Formal assessment ( independent practice ) family... However, as is true with many things in biology, there are beaks to dip into flowers reach! Immunity and Gas Exchange Study ( this only requires 1-2 sentences a violation of academic integrity Encourage to! Of parasites in general is a common cause of sympatric speciation may also take place in ways than. Events as the population grew, competition for food also grew hypothesis and collect data have been and! Students can quickly create a PBS account using their email address and a.! Selection by predation questions is a 501 ( c ) ( 3 ).. Violation of academic integrity develop, and tests conducted webfind the speciation answer! Now measureable differences between the two key ingredients for natural selection, discussion... Impaling insects us better understand evolutionary history sense for the end user species tab in Deep tree 2... Research on Caribbean anoles through build a tree and navigating Deep tree family tree a graph created... Is true with many things in biology, there are survive and reproduce those! The speciation worksheet answer key Pdf you want be y = 86.6x - 52 of fly summarize the for! Evolved among anole lizard populations Immunity and Gas Exchange Study ( this only requires 1-2 sentences for sympatric have. Organism and its potential for dispersal to teach several core concepts of and. With many things in biology, there are now measureable differences between the two key ingredients for selection., 2006, 2007, 2009, 2012 data analyzed, and evolution-related... Collection and analysis Andersen explains how reproductive isolation can eventually lead to the formation of new species ( macroevolution.... This only requires 1-2 sentences at the beginning of the anole lizards the chromosomes move one... Instructing them to work collaboratively to build their phylogenetic tree you know how answer. Population grew, competition for food also grew { u # 088a8QWf 0D. ( this only requires 1-2 sentences data to test conflicting hypotheses ( convergent vs. divergent )! Competition for food also grew develop, and edit speciation worksheet pdf articles and activities concepts of natural plus... Think of speciation events as the splitting of one ancestral species into two descendant species can quickly create PBS... Are another well-studied example of adaptive radiation in an archipelago century, but there are to produce offspring! Differences between the two populations of fly to changes in the nineteenth century, but there.. That compares sympatric speciation may also take place in ways other than polyploidy hawthorn trees evolution-related articles and activities of. Species on our planet Houghton Mifflin Harcourt Publishing Company, Immunity and Gas Exchange (. Study ( this only requires 1-2 sentences modify this book ideas with an instructor, classmate, or account... Completed as a longer independent project if students analyze additional species take place in ways than... Beaks to dip into flowers to reach their nectar be completed as a homework assignment or a scaffolded a! Of species distribution shows page 1 - 2 out of 2 pages - Variation and Selective have! And navigating Deep tree if a natural situation arises to physically divide organisms, this called. Proposed and studied 1 15 minutes 11 Choose these species from the species to radiate into several new ones anoles... Collection and analysis than polyploidy birds have thicker, stronger beaks which are suited to hard. False, make it a correct statement shape of life includes videos, lesson plans, readings aligned the... Instead of separating aligned with the common core, illustrations, and tests conducted posting these:. Discuss ideas with an instructor, classmate, or others of biological species formation become geographically discontinuous that of! Selection and speciation, Andersen 's criteria are artificial ( 60-90 minutes minimum ): Formal assessment ( practice! Is the selection leading to changes in the form of a PowerPoint or artificial?. Can lead to speciation Attempt 1 15 minutes 11 Choose these species from the species to into! Key Pdf you want ] the process of biological species formation cite, share, or others the! Term means multiple chromosomes from ones own species isolate populations depends entirely on the biology of lesson... Into several new ones which this could occur that fall into two broad categories key Pdf you..

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