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

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

3. What does the process of species growth suggest about species that are transported into foreign regions?
(a) They stay stagnant.
(b) They prosper.
(c) They do not prosper.
(d) They inter-breed.

4. What is the struggle for existence caused by?
(a) Quick reproduction.
(b) Little food sources.
(c) Too many species.
(d) Natural selection.

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

Short Answer Questions

1. What is required for a species to continue to grow?

2. In Chapter 1: Variation Under Domestication, what animal does Darwin give as an example for being perfectly adapted for catching its food?

3. What does natural selection say must be true for change to be preserved?

4. What happens to a species if their traits and characteristics are not passed down to the next generation?

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

Short Essay Questions

1. Why does Darwin suggest his methods of study are inadequate?

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

3. How do Naturalists define a species and a variety?

4. Regarding Darwin's example of the pigeon in Chapter 1, why is the pigeon easily determined to be descended from a single species?

5. Why is a flying mammal such as a bat difficult to explain through natural selection?

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

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

8. What must be examined in order for Darwin's theory to be considered plausible?

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

10. Why are the laws of inheritance still not understood?

(see the answer keys)

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