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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 6: Difficulties on Theory.

Multiple Choice Questions

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

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

3. What type of populations may be more likely to become extinct?
(a) Diverse populations.
(b) Medium populations.
(c) Large populations.
(d) Small populations.

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

5. What do most organisms have a very good ability to do?
(a) Reproduce.
(b) Adapt.
(c) Alter their biological makeup.
(d) Migrate.

Short Answer Questions

1. What is the struggle for existence caused by?

2. Why do domestic ducks have lighter wings and heavier feet then wild ducks?

3. What other field of science can natural selection be compared to?

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

5. Which term refers to a type of variation that is seen in most or all groups of organisms?

(see the answer key)

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