<LCPO> BIOLOGY
12th Edition
ISBN: 9781266216398
Author: Raven
Publisher: MCG CUSTOM
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Chapter 23.4, Problem 3LO
Summary Introduction
To determine: The way in which a phylogenetic tree can indicate the timing of species diversification.
Introduction: Species diversification is the evolution that explains the collective fluctuations that occur in the heritable traits of a population. It can produce in diversification in a species that is microevolution or diversification among species or macroevolution.
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Phylogenetic trees are a type of model that can be used to show how organisms are related through common ancestry. The phylogenetic tree model represents nodes numbered 1 through 8.
Using evidence from the phylogenetic tree determine which species would be MOST closely related to the species on branch C?
Question options:
The species on Branch A is most closely related to the species on branch C because they share the most recent common ancestor at node 1.
The species on Branch B is most closely related to the species on branch C because they share the greatest number of common +ancestors.
The species on Branch A & B are both most closely related to the species on branch C because they share the most most recent common ancestor at node 2.
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When 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
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Chapter 23 Solutions
<LCPO> BIOLOGY
Ch. 23.1 - Prob. 1LOCh. 23.1 - Prob. 2LOCh. 23.2 - Prob. 1LOCh. 23.2 - Prob. 2LOCh. 23.2 - Demonstrate how a cladogram is constructed.Ch. 23.3 - Explain the taxonomic classification system.Ch. 23.3 - Prob. 2LOCh. 23.3 - Prob. 3LOCh. 23.4 - Prob. 1LOCh. 23.4 - Prob. 2LO
Ch. 23.4 - Prob. 3LOCh. 23.5 - Prob. 1LOCh. 23 - Construct a data matrix like the one in figure...Ch. 23 - Prob. 1IQCh. 23 - Prob. 2IQCh. 23 - Prob. 3IQCh. 23 - Prob. 4IQCh. 23 - Overall similarity of phenotypes may not always...Ch. 23 - a. is based on overall similarity of phenotypes....Ch. 23 - The principle of parsimony a. helps evolutionary...Ch. 23 - Parsimony suggests that parental care in birds,...Ch. 23 - The forelimb of a bird and the forelimb of a...Ch. 23 - In order to determine polarity for different...Ch. 23 - In a paraphyletic group a. all species are more...Ch. 23 - A paraphyletic group includes a. an ancestor and...Ch. 23 - Prob. 9UCh. 23 - A taxonomic group that contains species that have...Ch. 23 - Rapid rates of character change relative to the...Ch. 23 - Species recognized by the phylogenetic species...Ch. 23 - Prob. 1SCh. 23 - Identifying outgroups is a central component of...Ch. 23 - As noted in your reading, cladistics is a widely...Ch. 23 - Across many species of limpets, loss of larval...Ch. 23 - Birds, pterosaurs (a type of flying reptile that...Ch. 23 - AID:1825 | 10/04/2018 6. In what sense does the...
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- Draw a simple phylogenetic tree and identify a node, a branch, and an outgroup.arrow_forwardUse the data matric provided to draft a phylogenetic tree. Label the outgroup and indicate the origin of each of the Pax genes on the tree. Presence of Pax Genes * Pax1 Pax2 Pax3 Pax4 Pax5 Genes → Species ↓ S. Philomina 1 1 1 1 1 J. Antar 1 1 1 1 0 M. Aflaton 1 1 1 1 0 J. Fangaloza 1 1 0 0 0 A. Harisa 0 0 0 0 0 *1 = present; 0 = absentarrow_forwardThe approach to estimating phylogenetic trees is most like the approach of which species concept? 2) A) Morphological species concept B) Biological species conceptC) Subspecies concept D) Phylogenetic species concept Then explain why the answer is correct and the rest are inccorect.arrow_forward
- Explain the steps for Constructing a species-level phylogenetic tree usingDNA sequences ?arrow_forwardUse the following matrix to create a phylogenetic tree showing the relationship of the species. Mark the position of species and traits on your tree. +: is to represent the presence of the traits -: is to represent the absence of the traitsarrow_forwardUsing the phylogenic tree below, answer the following questions: 1 -Species A -Species B -Species C -Species D -Species E -Species F Which species will shares only one characteristic with the others? Which numbered location identifies characteristics shared by Species E and F? Which species will share characteristics similar to those at location 3? Which numbered location indicates a common ancestor of all the species on the tree?arrow_forward
- Explain the role of gene flow in the biological species concept.arrow_forwardDescribe and illustrate the parts of a phylogenetic tree.arrow_forwardWhen constructing phylogenetic trees, what is the purpose of applying maximum parsimony? Parsimony allows the researcher to "root" the tree. For trees based on morphology, the most parsimonious tree requires the maximum evolutionary events. The outgroup roots the tree, allowing the principle of parsimony to be applied. For trees based on morphology, the most parsimonious is the one that uses the simplest explanation of evolutionary events.arrow_forward
- Describe at least one reason that the traditional phylogenetic tree model may require modification.arrow_forwardExamine the following phylogenetic tree illustrated in Figure shown in the first picture. In general, what does a phylogenetic tree illustrate? How do you compare the relationships of organisms BB, CC, and DD? Given the following organisms in the Table in the second picture, number them in terms of which is relatively closest and distant. Number 1 refers to closest.arrow_forwardPlease compare these phylogenetic trees and choose the most accurate statement about whether they are the same tree or not. A a Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. b с DCBE d E A They are not the same because the overall shape looks different. They are not the same because they show different relationships among species. Nodes have been rotated but the species relationships are the same. They are the same because they have the same species at their tips. D C Barrow_forward
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