CUSTOM BIOLOGY
19th Edition
ISBN: 9781323945490
Author: Urry
Publisher: Pearson Custom Publishing
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Chapter 25, Problem 7TYU
Summary Introduction
Introduction: Exaptation is a process in which the organism acquires for its function that was not originally adapted or selected through natural selection. The evolutionary trait that is evolved to serve a particular function of an organism, but subsequently the organisms use to perform another function is termed as the exaptation. This exaptation trait is most common in anatomical and behavioural properties of organisms.
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Students have asked these similar questions
Discuss the idea that every evolutionary adaptation has both advantages and disadvantages, using each of the following as an example: (a) cephalization,(b) the arthropod exoskeleton, and (c) segmentation with specialization.
Create lists of animal phyla that (a) are cephalized, (b) have an incomplete digestive tract, (c) have segmented bodies, and (d) have a coelom.
Pharyngeal slits are which of the following?
Question 24 options:
a)
Openings in the pharynx. In aquatic chordates they allow for exit of water that enters the mouth.
b)
Elongations of the posterior portion of the body. Use for locomotion in fish, or balance in some terrestrial vertebrates.
c)
Flexible, rod-shaped structures that grows from mesoderm. Gives support to an animal in embryonic development of chordates or for entire life depending on the species.
d)
Tissues that produces thyroid type hormones.
e)
Hollow tubes that develops from ectoderm. Develops into the central nervous system.
Chapter 25 Solutions
CUSTOM BIOLOGY
Ch. 25.1 - What hypothesis did Miller test in his classic...Ch. 25.1 - How would the appearance of protocells have...Ch. 25.1 - MAKE CONNECTIONS In changing from an "RNA world"...Ch. 25.2 - Describe an example from the fossil record that...Ch. 25.2 - WHAT IF? Your measurements indicate that a...Ch. 25.3 - The first appearance of free oxygen in the...Ch. 25.3 - What evidence supports the hypothesis that...Ch. 25.3 - WHAT IF? What would a fossil record of life today...Ch. 25.4 - Explain the consequences of plate tectonics for...Ch. 25.4 - What factors promote adaptive radiations?
Ch. 25.4 - Prob. 3CCCh. 25.5 - Explain how new body forms can originate by...Ch. 25.5 - Why is it likely that Hox genes have played a...Ch. 25.5 - Prob. 3CCCh. 25.6 - How can the Darwinian concept of descent with...Ch. 25.6 - Prob. 2CCCh. 25 - Describe the roles that montmorillonite clay and...Ch. 25 - What are the challenges of estimating the ages of...Ch. 25 - What is the "Cambrian explosion," and why is it...Ch. 25 - Explain how the broad evolutionary changes seen in...Ch. 25 - How could changes in a Single gene or DNA region...Ch. 25 - Explain the reasoning behind the Statement...Ch. 25 - Level 1: Knowledge/Comprehension 1. Fossilized...Ch. 25 - The oxygen revolution changed Earth's environment...Ch. 25 - Prob. 3TYUCh. 25 - Prob. 4TYUCh. 25 - Prob. 5TYUCh. 25 - Prob. 6TYUCh. 25 - Prob. 7TYUCh. 25 - EVOLUTION CONNECTION Describe how gene flow,...Ch. 25 - Prob. 9TYUCh. 25 - WRITE ABOUT A THEME: ORGANIZATION You have seen...Ch. 25 - Prob. 11TYU
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