Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 22.1, Problem 2CC
WHAT IF? Suppose you are studying two bird species that live in a forest and are not known to interbreed. One species feeds and mates in the treetops and the other on the ground. But in captivity, the birds can interbreed and produce viable, fertile offspring. What type of reproductive barrier most likely keeps these species separate in nature? Explain
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Select all that apply. Beetles from two geographically isolated populations are
captured and brought to the lab. When an adult male from one population and an
adult female from the other population are placed together, they mate, and the
female lay eggs a couple of days later. The eggs hatch, the beetles develop into
adults but are sterile. Which of the following are true?
This is an example of post-zygotic reproductive isolation.
O Sexual selection is likely responsible.
O This is an example of pre-zygotic reproductive isolation.
O Dobzhansky-Muller genetic incompatibility is likely responsible.
Question 3
Choose all that apply. Which of the following are true of adaptive radiations?
OAdaptive radiations involve relatively rapid speciation.
The evolution of the Hawaiian silverswords is an example of an adaptive
radiation.
OAdaptive radiations can occur when an ancestral species colonizes a new arca
and adapts to multiple open niches.
Question 4
What are the three major steps of…
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Chapter 22 Solutions
Campbell Biology in Focus
Ch. 22.1 - Prob. 1CCCh. 22.1 - WHAT IF? Suppose you are studying two bird species...Ch. 22.2 - Contrast allopatric and sympatric speciation....Ch. 22.2 - WHAT IF? Is allopatric speciation more likely to...Ch. 22.2 - MAKE CONNECTIONS Review the process of meiosis in...Ch. 22.3 - What are hybrid zones, and why can they be viewed...Ch. 22.3 - WHAT IF? Consider two species that diverged while...Ch. 22.4 - Speciation can occur rapidly between diverging...Ch. 22.4 - Summarize evidence that the yup flower-color locus...Ch. 22.4 - MAKE CONNECTIONS Compare Figure 10.11 with Figure...
Ch. 22 - The largest unit within which gene flow can...Ch. 22 - Males of different species of the fruit fly...Ch. 22 - According to the punctuated equilibria model, A....Ch. 22 - Bird guides once listed the myrtle warbler and...Ch. 22 - Which of the following factors would not...Ch. 22 - Plant species A has a diploid number of 12. Plant...Ch. 22 - SCIENCE, TECHNOLOGY, AND SOCIETY In the United...Ch. 22 - SCIENTIFIC INQUIRY DRAW IT In this chapter, you...Ch. 22 - FOCUS ON EVOLUTION Explain the biological basis...Ch. 22 - FOCUS ON INFORMATION In sexually reproducing...Ch. 22 - Suppose that females of one population of straw-...
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