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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

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

2. What is likely to NOT affect variations that are consistent among individuals?
(a) Competition.
(b) Natural selection.
(c) Domestication.
(d) External factors.

3. Which of the following tends to live over larger areas?
(a) Mammals.
(b) Variations.
(c) Species.
(d) Subspecies.

4. What type of populations experience more variations?
(a) Small populations.
(b) Diverse populations.
(c) Large populations.
(d) Medium populations.

5. What does the absence of complete facts with Darwin's theory open the theory up to?
(a) Success.
(b) Confusion.
(c) Failure.
(d) Objections.

Short Answer Questions

1. Who is one individual that Darwin mentions as helping him in every way prior to the publication of The Origin of Species?

2. What term refers to those organisms that survive despite the struggle for resources?

3. What do naturalists call a situation where a child takes on characteristics NOT shared by the parents?

4. What is the struggle for existence caused by?

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

Short Essay Questions

1. What can't all examples for disused organs be attributed to correlational growth?

2. What occurs in situations where a species is moved from one climate to another?

3. What is the difference between domesticated and wild animals, according to Darwin?

4. Why would, on some islands, nature select for beetles that do not fly?

5. Why is natural selection much broader than domestic selection by humans?

6. Is there a cycle to the struggle for existence? Explain.

7. What are four objections raised to the theory of natural selection?

8. How can the geology of mountains and valleys be related to natural selection?

9. How does Darwin propose a theory that goes against long-held popular belief?

10. Why isn't it safe to assume that regions that are physically connected in the present day were connected in the past?

(see the answer keys)

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