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Use the following phylogenetic tree to help determine if the provided examples below are homologous structures or analogous structures. Figure 27.10 ANCESTRAL PROTIST Metazoa 770 million years ago ©2014 Pearson Education, Inc Eumetazoa 680 million. years ago 670 million years ago Bilateria Deuterostomia Lophotrochozoa Ecdysozoa The worm shape of a hemicordata and the worm shape of a nematoda Porifera Ctenophora Cnidaria The scales of a fish (chordata) and the scales of a scaleworm (annelida) The shell of the brachiopoda and the shell of the mollusca The shell of a mollusca and the hard outer surface of the arthropods Hemichordata Echinodermata The holes in human skin (pores) and the hole in the body of a porifera Chordata Platyhelminthes Rotifera Ectoprocta Brachiopoda EXAMPLE The round shape of an Echinodermata and the round shape of a ctenophora Mollusca Annelida Nematoda Arthropoda The trochophore larval stage of a Mollusca and the trochophore larval stage of an annelida. Homologous…

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Explain your answer in some depth and avoid just saying "It is A" or It is B. Defend your answer and explain why you choice that answer choice.    Question: Domestic dogs would least likely meet the definition of a single species using which concept? Group of answer choices A) Lineage B) Biological C) Morphological D) Domestic dogs are not a single species according to any of the species concept definitions.

Activity 4. Make a Dichotomous Key. Make a Dichotomous Key for the animals illustrated below https://www.flickr.com/photos/queenslandstatearchives 137884088126 https:pixabay.com/vectors/biodiversity earthworm fertilizer-160380 https:Weommens.wikimedia.arg/aiki/File:CSIRO_Seienoeimage 2186 ARed ackSprderjpg https://en.wikipedia.org/wiki/Tamaraw %3D II IV

QNO-2: Discuss Biological species concept ,its problems and significance of isolating mechanisms.

Please help!  Question: Summarize how new species can arise by explaining the differences between allopatric and sympatric isolation. Give a real example of when allopatric speciation has been observed and when sympatric speciation has been observed.

What's In Let us review what you have learned from the previous module. Answer the activity below. ACTIVITY 1. Match Me! Directions: Match Column A with the correct answers in Column B by writing the number of your answers in the Answer Grid. If all your answers are correct, the sum when answers are added horizontally, vertically, or diagonally will give you a magic number. Column A Column B a. A process in which new species form b. Authored the Theory of Evolution by Natural Selection 1. Thomas Malthus 2. Hybrid sterility c. It occurs when a hybrid develops, matures but fails to reproduce increasing 3. Pre-mating isolating mechanism d. States that human 4. Jean Baptiste Lamarck population limits resources e. Species will different mating seasons f. Sought pieces of evidence for the idea of uniformitarianism due to 5. Temporal isolation not mate 6. Speciation

c- What are the differences between Rooted and Unrooted Phylogenetics trees? d- Using Unweighted Pair Group Method with Arithmetic Mean (UPGMA) construct the phylogenetic tree for the given data G1 G2 G3 G4 G5 G10 |10 0 4 4 14 G3 12 8 7 G2 06 16 G4 ㅇ 0 12 G5

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Need help what is the difference between a gene tree and a species tree? Explain in your own words how it is possible for gorillas and humans to share a genetic trait (such as a retroviral insertion) that chimpanzees do not share, if chimpanzees and humans are really each other's closest relatives. Given the lack of agreement between gene trees and species trees, how is it possible to reconstruct the true species tree?

INSTRUCTIONS: 1. On the branches of the phylogenetic tree on the back side of this worksheet, write in a unique derived trait (Autapomorphy), either anatomical or behavioral, that is used to distinguish each primate subgroup from the other taxa of primates. The points where the derived traits should be entered are labelled A1 - A6 and a written description of what is expected for each appears below and to the right of the tree. 2. On the trunk of the phylogenetic tree write in a shared derived trait (Synapomorphy) that unifies the branches (clades) of the tree which sit to the right of the trait marker (S1-S5). Again these traits can be either anatomical or behavioral and a written description of what is expected for each appears below and to the right of the tree. For both #1 and #2 you should write in at least one trait for each trait marker (A1-A6 and S1-S5) that appears on the phylogenetic tree. Make sure all entries are detailed enough to differentiate taxa and written legibly. If…

Virtual Lab Lizard Evolution Virtual Lab hhmi Biolnteractive LIZARD EVOLUTION VIRTUAL LAB Answer the following questions as you finish each module of the virtual lab or as a final assessment after completing the entire virtual lab. Student Handout Module 1: Ecomorphs 1. At the beginning of the virtual lab, you were asked to sort eight lizards into categories. What criteria did you initially use to make your groups? Did you revise your criteria later? Why? 2. An adaptation is a structure or function that is common in a population because it enhances the ability to survive and reproduce in a particular environment. Provide one example and an explanation of one adaptation in the Anolis lizards. 4. What is an ecomorph? Provide one example from the virtual lab. 3. Provide one evolutionary explanation for why lizards living in the same part of the habitat (i.e., grass) would have similar characteristics. 5. How is an ecomorph different from a species? 6. Explain how a particular body feature…

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Activity 13.3: Complete the table. Directions: Explain and give example for each type of reproductive isolating mechanisms. Pre-zygotic Reproductive Isolating Mechanisms Explanation Еxample Habitat Isolation Behavioral Isolation Post-zygotic Reproductive Isolating Mechanisms Explanation Еxample Hybrid inviability Hybrid breakdown JNGSO

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GUIDE QUESTIONS1. Which species on the chart (A, B, C, D, E, F) is the common ancestor? Justify your answer. 2. Did the round nose of Species E and Species F come from the common ancestor?3. Is the round nose of Species E and Species F a homologous structure?4. Did the square nose of Species D and Species G come from the commonancestor?5. Is the square nose of Species D and Species G a homologous structure?6. Are the cat ears of Species D and Species F homologous structures?7. Are the smiles of Species E and Species G homologous structures?

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Make your molecular phylogony of the 6 mushroom species with given character matrix. (I also gave you the DNA sequence give to me which is how I made the character matrix)

a- What is Phylogenetics? b- What are the types of Phylogenetics trees? c- What ere the differences between Rooted and Unrooted Phylogenetics trees? d- Using Unweighted Pair Group Method with Arithmetic Mean (LPGMA) construct the phylogenetic tree for the given data G1 G2 G3 G4 G5 G10 10 12 8 7 0 4 4 14 0 6 16 G2 G3 G4 G5 0 12 TOP

I need some help with question #13 for this problem set  According to the phylogenetic tree of beach mice in Figure 2, how would you describe the relatedness of Santa Rosa Island beach mice to Lake Louisa beach mice and Southeastern beach mice? Select one option.

Species Concepts Review The Baltimore Orioles and Black-backed Orioles species complex has conflicting evidence in support of each being their own species and in support of them being the same species. Review the evidence below for each hypothesis, then, using that evidence, explain whether they should be classified as distinct or the same species based on each species concept. Then, using the overall evidence, decide whether to classify them as the same or different species. Genetic Information (In the Species Concepts lab, we used a "controversial" 10% cutoff. A more realistic cutoff might be 1%. Let's use a 1% cutoff for this activity.) Sequence Differences Baltimore Oriole vs Black- backed Oriole Cytochrome b 0.26% Control region 0.74% 2A. Based on the genetic information above, should the Baltimore Oriole and Black-backed Oriole be classified as one species or two species?

Please associate the explanation with the correct de-extinction methods, some of which are still only possible in theory.   Genes from extinct species are cut and pasted into the genome of a relative species using the molecular tool CRISPR.   Relatives of the extinct species are hybridized or selected of specific traits with the goal of creating morphologically similar species that can perform the same ecological function as the extinct relative.   The nucleus of an intact cell from an extinct species is inserted into the egg of a living relative.   1. Back-breeding 2. Cloning 3. Genomic reconstruction

Biochemical recognition systems within the stigma of a flowering plant prevent the pollen from a different species from developing a pollen tube and fertilizing its eggs. This is an example of what kind of reproductive isolation? O post-zygotic, ecological separation pre-zygotic, mechanical isolation O post-zygotic, temporal separation pre-zygotic, temporal separation O pre-zygotic, behavioral isolation

3. Module 1. Ecomarobs a. Observe the morphologies of the eight different lizard species. For now, assume that you have just discovered these lizards and you don't even know if they are 8 different species or 1 species or some other number of species. You just have 8 lizards, 4 from each island. b. Following the module, group the lizards by morphology. i. How many groups did you find?_ ii. What sorts of traits or characters did you use to group the lizards? c. Then take some more careful measurements as shown and regroup them if needed. i. Did your measurements match the reference set? ii. Compare Lamellae Count, Relative Hindlimb Length, and Relative Tail Length among your specimens, and regroup your species based on these characters. iii. Did your groupings change? If so, how? iv. Watch the video to see if your conclusions match those of Dr. Losos d. Now. If this is all you knew about these lizards, how many "species" would you conclude there are? e. What sort of species definition…

Question:- Why might some scientists use the morphological species concept or the ecological species concept instead of the biological species concept to define some species? Provide some examples in your reasoning.

Name: Date: Galapagos Finch Evolution (HHMI Biointeractive) - https://voutu be/mcM23M-CCog ~16 minutes 1. What is the "mystery of mysteries? 2. The Grants' study on the island of Daphne Major studied what organisms? 3. Where did the 13 species of finches on the islands come from? 4. How did the Grants catch the finches? 5. What features did they measure? 6. What happened in 1977 to the island? 7. What type of birds were more likely to survive after this event? 8. After the El Nino event in 1983, which birds were more likely to survive? 9. What keeps different species from mating on the Galapagos islands? 10. The most likely scenario explaining the different finches on the islands is that: a) different birds migrated to different islands b) one species evolved into many different species 11. Examine the graph below. Summarize what happened to the finch population between 1976 and 1978. 30 1976 Offspring 25- 20- 15- 10- 5- 7.3 7.8 8.3 8.8 9.3 9.8 10.3 10.8 11.3 40 1978 Offspring 30- 20-…