Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
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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Chapter 20 Solutions
Campbell Biology in Focus (2nd Edition)
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Evaluate the following statements about seeds from two biology textbooks: I. The seed coat is an adaptation that protects the plant embryo from damage, water loss, and infection. II. Evolution has come up with a clever solution for protecting plant embryos: seed coats that prevent damage, water loss, and infection. Do these statements accurately represent the evolution of seeds? a) Yes, both statements are accurate. b) No, neither statement is accurate. c) Only the first statement is accurate.arrow_forwardSuppose 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_forwardExamine the table of characters given for four different species of flower. Species A Species B Species C Species D Presence of sepals Number of petals Arrangement of petals Number of carpels Yes Five Whorled Ten Yes O number of petals O arrangement of petals O presence of sepals O number of carpels Five Whorled Ten Yes Ten Whorled Ten No Ten Whorled Five Based on the character matrix, which is most likely an ancestral trait for the group of species?arrow_forward
- Fruit scientists are trying to determine the role of the pectinase (p) gene in a plant’s ability to tolerate cold conditions. The table shows each of three possible fruit tree genotypes and the percentage of fruit produced at different temperature ranges. Which of the following statements best describes the evolutionary concept illustrated by this example? A. Homozygous genotypes increase fitness in a population. B. Hybrid plants are known to have a disadvantage over homozygous genotypes. C. Natural selection selects against the recessive gene and for the dominant gene. D. Certain phenotypic variations can significantly increase fitness of the organism in particular environments.arrow_forwardExplain why plants being polyploid makes using the phylogenetic species concept difficult to use. Be sure to explain how the phylogenetic species concept attempts to classify organisms into distinct species. How can scientists still use the phylogenetic species concept to classify land plants, despite the majority being polyploid? (What do they do to get around this problem?)arrow_forwardCan you show me a picture of raspberry and banana clade and explainarrow_forward
- Constructing a Phylogenetic Tree Now, you are going to create and the interpret your own phylogenetic tree. Take a look at the characteristics for these organisms. Plant Group Photosynthesis? Seeds? Water-conducting Tissue? Flowers? Ferns X Gymnosperms Mosses Angiosperms X Using the characteristics from the table above, determine where each of these organisms belongs on the tree below, then answer the questions. D A В Being able to do photosynthesis is an example of a: O shared derived character O shared ancestral characterarrow_forwardExplain flowers and lilies. Are these homologous or analogous and why?arrow_forwardConstructing a Phylogenetic Tree Now, you are going to create and the interpret your own phylogenetic tree. Take a look at the characteristics for these organisms. Plant Group Photosynthesis? Seeds? Water-conducting Tissue? Flowers? Ferns X Gymnosperms Mosses Angiosperms Using the characteristics from the table above, determine where each of these organisms belongs on the tree below, then answer the questions. A В What characteristic appears just before group C branches off (the starred location)? flowers water conducting tissue seeds O photosynthesisarrow_forward
- A consortium of dairy and beef farmers has hired you to study the evolutionary origins of domestic cattle. They particularly want to know whether the humped zebu cattle of Asia and the cattle of Africa are derived from different species of wild cattle than European breeds. Outline a complete research program to study this question. Describe the sequence of steps you would need to do, what kind of data you would collect, and the methods you could use to evaluate possible trees and branches.arrow_forwardExplain how polyploidy in plants can generate new plant species. Be sure to provide molecular detail. What barriers to reproduction cause speciation in this case?arrow_forwardWhich of the following features is found in a rooted tree but not in an unrooted tree?a. Terminal nodesb. Internal nodesc. A common ancestor to all other nodesd. Branch lengths that represent the amount of evolutionary divergence between nodesarrow_forward
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