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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 type of relationship do organisms have with one another?
(a) Competitive.
(b) Cooperative.
(c) Genetic.
(d) Environmental.

2. What animal does Darwin use as an example of an intermediate form of a full-land and full-flying animal?
(a) Spider monkey.
(b) Penguin.
(c) Flying squirrel.
(d) Bat.

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

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

5. What term refers to those organisms that survive despite the struggle for resources?
(a) Hereditary modification.
(b) Natural selection.
(c) Artificial selection.
(d) Circle of life.

Short Answer Questions

1. What happens when two species from different climates interbreed?

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

3. What bodily system do some scientists believe is responsible for producing individual differences?

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

5. What is one function that cave dwelling animals lost through natural selection?

(see the answer key)

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