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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 11: Geographical Distribution.

Multiple Choice Questions

1. What does the fossil record show about natural selection?
(a) Gradual change.
(b) Variations.
(c) Adaptations.
(d) Quick change.

2. Why do hybrids tend to display little variation?
(a) Because of genetic defects.
(b) The parents are the same.
(c) The parents are very close in characteristics.
(d) There is no natural selection with hybrids.

3. Which of the following refers to ways by which an organism could spread to a new area that would NOT typically occur naturally?
(a) Accidental means of dispersal.
(b) Species changes.
(c) Artificial migration.
(d) Human transport.

4. When are fossils typically preserved?
(a) Between periods of geological change.
(b) During storms.
(c) In the winter.
(d) During earthquakes.

5. What separates marine life near the equator and South America that causes vast differences in species?
(a) Small strip of Panama.
(b) Fresh water rivers.
(c) Atlantic Ocean.
(d) Peru.

Short Answer Questions

1. What do scientists attribute to organs that cannot be explained by natural selection?

2. What type of fossils may survive damaging geological changes?

3. What does the fossil record show about new species?

4. In what type of species are variations of the eye found?

5. What aspect of organisms is not caused by chance?

(see the answer key)

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