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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 5: Laws of Variation.

Multiple Choice Questions

1. What does Darwin suggest about variation for parts that are NOT specialized?
(a) Becomes correlational.
(b) More variation.
(c) Eventually stops.
(d) Less variation.

2. What is the difference between the two types of variations discussed in Chapter 1: Variation Under Domestication?
(a) The area affected by the variation.
(b) Degree of variation.
(c) Location of variation.
(d) The species that variations happen to.

3. What aspect of organisms is not caused by chance?
(a) Location.
(b) Size.
(c) Variation.
(d) Gender.

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

5. Where did Darwin's ship travel?
(a) Asia.
(b) North America.
(c) England.
(d) South America.

Short Answer Questions

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

2. What may stop a group of carnivorous wolves from growing?

3. What is unique about variation in polymorphic species?

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

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

(see the answer key)

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