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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. In extreme environments, what are species in competition with?
(a) Other species.
(b) Migration needs.
(c) Food source distruction.
(d) Climate.

2. What results as a climate becomes more hostile?
(a) Less food.
(b) Fewer species.
(c) More competition.
(d) Better cooperation between species.

3. Why do domestic ducks have lighter wings and heavier feet then wild ducks?
(a) Domestic ducks walk more.
(b) Domestic ducks walk less.
(c) Different species.
(d) This is a false statement.

4. Which of the following occurs when one type of variation causes variation in another part of an organism?
(a) Misallocation of variation.
(b) Normal variation.
(c) Mulitvariation.
(d) Correlation of growth.

5. What happens when two species from different climates interbreed?
(a) All traits are selected for.
(b) Traits favoring the previous climate are still selected for.
(c) Nothing.
(d) Some traits are not selected for.

Short Answer Questions

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

2. What tends to occur in large groups of genera?

3. Why are some useless organs sill found in animals?

4. Which of the following tends to live over larger areas?

5. What is the struggle for existence caused by?

(see the answer key)

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