Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 17, Problem 9SQ

Sex in many birds is typically preceded by an elaborate courtship dance. If a male’s movements are unrecognized by the female, she will not mate with him. This is an example of ______.

  1. a. reproductive isolation
  2. b. behavioral isolation
  3. c. sexual selection
  4. d. all of the above
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Which of these situations offers the lowest “opportunity for selection” for males? A. Females choose mates with a fancy ornament. B. Every female chooses one male to mate with for life. C. Locations that females need access to in order to reproduce are rare. D. Males fight each other for access to groups of females.
The fantastic coloration and behavioral displays in the birds of paradise that we watched in class were examples of differential sexual selection driven by: O a. Female-female combat b. Male competition O c. Female choice O d. Intrasexual selection
Sexual selection frequently influences aspects of body form and can lead to_____ . a. a sexual dimorphism c. exaggerated traits b. male aggression d. all of the above
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