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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 9: On the Imperfection of the Geological Record.

Multiple Choice Questions

1. What do scientists attribute to organs that cannot be explained by natural selection?
(a) Disuse.
(b) Use.
(c) Overuse.
(d) Inheritance.

2. Which species require more years for change?
(a) Slow breeders.
(b) Fast breeders.
(c) Sterile species.
(d) Inter-breeders.

3. How many objections does Darwin say there are about natural selection?
(a) 1.
(b) 4.
(c) 2.
(d) 3.

4. What is the primary cause for the struggle for survival between species?
(a) Rapid reproduction.
(b) Food sources.
(c) Variation.
(d) Environmental factors.

5. What would increase the likelihood of variations occurring in a given population?
(a) Domestication.
(b) Dramatic environmental changes.
(c) Fewer members of the species to compete with.
(d) Increase in available food.

Short Answer Questions

1. When are fossils typically preserved?

2. As an example of a variation, what does Darwin indicate in Chapter 1 that is a change due to improved diet?

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

4. What typically happens to a species that begins to vary and forms two distinct species?

5. In Chapter 4: Natural Selection, what does Darwin suggest about most variations?

(see the answer key)

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