CAMPBELL MASTERING BIOLOGY ACCESS>I<
18th Edition
ISBN: 9781323766286
Author: Pearson
Publisher: PEARSON
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Chapter 22, Problem 4TYU
Bird guides once listed the myrtle warbler and Audubon's warbler as distinct species. Recently, these birds were reclassified as eastern and western forms of a single species, the yellow-rumped warbler. Which of the following pieces of evidence, if true, would be cause for this reclassification?
- A. The two forms interbreed often in nature, and their offspring survive and reproduce well
- B. The two forms live in similar habitats and have similar food requirements.
- C. The two forms have many genes in common.
- D. The two forms are very similar in appearance.
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When we take, say, 100 individuals of a species of beetle from the wild and place them in a new environment that is not so different that they are unable to thrive but different enough so that they are experiencing a new selective regime, say, a lower temperature, what typically happens?
A - Sexual selection causes some larvae to be able to survive in the cooler temperatures and other individuals to be unable to survive because they need warmer temperatures.
B - We are unable to measure phenotypic selection, presumably because we do not have much variation among individuals for how they handle temperature.
C - The founder event assures us that the new population will be strictly representative of the source population (especially if we took all the 100 from the same location rather that from throughout the range of the species).
D - The population evolves to be tolerant of the lower temperature; it can do this because of latent variation already in the 100 founding individuals.
E -…
All of the following are examples of prezygotic isolation except?
A.) Two closely related species of flowering plants that release and are receptive to pollen at different times
B.) Two closely related species of squirrels, one that lives and breeds in woody meadows and another that lives and breeds in the forest interior
C.) Two closely related species of song birds whose hybrid embryos die early in development
D.) Two closely related species of spiders that have different, species specific, binding proteins on their gametes
What is inbreeding depression and why is it particularly a concern for conservation biology?
A) It is a chemical imbalance in the brain of animals forced into close quarters, such as those rescued from the wild and placed in zoos.
B) It is a situation where the frequency of an allele over time depends greatly upon its initial frequency, as such if populations are too small, the present alleles are at risk of being lost.
C) It is a situation where offspring of genetic relatives have increased fitness, this occurs when populations of animals are large and they mate freely.
D) It is a situation where offspring of genetic relatives have reduced fitness, this occurs when populations of animals become too small and they are thus likely to mate with closely related individuals.
Chapter 22 Solutions
CAMPBELL MASTERING BIOLOGY ACCESS>I<
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 - SCIENTIFIC INQUIRY DRAW IT In this chapter, you...Ch. 22 - SCIENCE, TECHNOLOGY, AND SOCIETY In the United...Ch. 22 - FOCUS ON EVOLUTION Explain the biological basis...Ch. 22 - FOCUS ON INFORMATION In sexually reproducing...Ch. 22 - Prob. 11TYU
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