CAMPBELL MASTERING BIOLOGY ACCESS>I<
18th Edition
ISBN: 9781323766286
Author: Pearson
Publisher: PEARSON
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Textbook Question
Chapter 20.1, Problem 2CC
Which of the trees shown here depicts an evolutionary history different from the other two? Explain.
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From the pictures interpret the tree using real branch lengths. What can you infer?
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Do these two trees (a and b) depict equivalent relationship? Please use phylogeny related terms to explain your answer.
Redraw and rearrange the branches of the tree below to make the most parsimonious(simplest) tree. A minus (“-“) next to a character indicates that that particular character isnot present in the taxa connected to that branch.
Chapter 20 Solutions
CAMPBELL MASTERING BIOLOGY ACCESS>I<
Ch. 20.1 - Which levels of the classification in Figure 20.3...Ch. 20.1 - Which of the trees shown here depicts an...Ch. 20.1 - Prob. 3CCCh. 20.2 - Decide whether each of the following pairs of...Ch. 20.2 - WHAT IF? Suppose that two species, A and B, have...Ch. 20.3 - Prob. 1CCCh. 20.3 - The most parsimonious tree of evolutionary...Ch. 20.3 - WHAT IF? Draw a phylogenetic tree that includes...Ch. 20.4 - What is a molecular clock? What assumption...Ch. 20.4 - MAKE CONNECTIONS Review Concept 14.5. Then...
Ch. 20.4 - WHAT IF? Suppose a molecular clock dates the...Ch. 20.5 - Why is the kingdom Monera no longer considered a...Ch. 20.5 - Prob. 2CCCh. 20.5 - Prob. 3CCCh. 20 - In a comparison of birds and mammals, the...Ch. 20 - To apply parsimony to constructing a phylogenetic...Ch. 20 - Prob. 4TYUCh. 20 - Prob. 5TYUCh. 20 - If you were using cladistics to build a...Ch. 20 - Prob. 7TYUCh. 20 - SCIENTIFIC INQUIRY DRAW IT (a) Draw a phylogenetic...Ch. 20 - FOCUS ON EVOLUTION Darwin suggested looking at a...Ch. 20 - Prob. 10TYUCh. 20 - SYNTHESIZE YOUR KNOWLEDGE This West Indian manatee...
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- Draw a Venn diagram. Start with the characteristic that is shared by all the taxa on the outside. Inside each box, write the taxa that have only that set of characteristic.arrow_forwardName a type of homology that is useful in buildingphylogenetic trees and explain why this kind of homology, andnot others, is usefularrow_forwardHow many rooted trees are theoretically possible for a group of seven organisms? How many for twelve organisms?arrow_forward
- Suppose that plants in the San Francisco Bay area and in southern Chile share a common seed dispersal method. Scientists determine that the evolutionary divergence of these plants happened long before this seed dispersal method arose in each plant. What term relates the seed dispersal method of the San Francisco Bay plant to the seed dispersal method of the southern Chile plant? Explain your answer.arrow_forwardexplain the raspberries common ancestor from the given clade.arrow_forwardBased on the traits in the table below, which of the following would be the most parsimonious arrangement of species on the tree below? List species from top to bottom, following the arrow on the right.arrow_forward
- How important putting a species in a hierarchal classification? If so, how would the knowledge change if this was not invented?arrow_forwardThe production of megaphylls by many different species of plants is an example of _____. a. parallel evolution b. analogy c. divergent evolution d. homologyarrow_forwardWhere in a phylogenetic tree would you expect to find the organism that had evolved most recently? a. at the base b. within the branches c. at the nodes d. at the branch tipsarrow_forward
- Two different monophyletic groups that share common ancestry with each other more recently than either does with other taxa are known as?arrow_forwardWhen building a phylogenetic tree, where do you place a number used to designate a change in character state?options: at a mark crossing the branch for the species that exhibits the new state at a node where two branches diverge at the end of a branch between the last species to exhibit the old state and the first to display the new statearrow_forwardWhy is a classification system based on relatedness war objective than a classification system based on the comparison of observed characteristics. What do the tips and branches of a phylogenetic tree representarrow_forward
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