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Biology 2e

Critical Thinking Questions

Biology 2eCritical Thinking Questions

Critical Thinking Questions

17.

If a person scatters a handful of garden pea plant seeds in one area, how would natural selection work in this situation?

18.

Why do scientists consider vestigial structures evidence for evolution?

19.

How does the scientific meaning of “theory” differ from the common vernacular meaning?

20.

Explain why the statement that a monkey is more evolved than a mouse is incorrect.

21.

Why do island chains provide ideal conditions for adaptive radiation to occur?

22.

Two species of fish had recently undergone sympatric speciation. The males of each species had a different coloring through which the females could identify and choose a partner from her own species. After some time, pollution made the lake so cloudy that it was hard for females to distinguish colors. What might take place in this situation?

23.

Why can polyploidy individuals lead to speciation fairly quickly?

24.

What do both rate of speciation models have in common?

25.

Describe a situation where hybrid reproduction would cause two species to fuse into one.

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