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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 happens when species are inter-bred?
(a) Variations increase.
(b) Variations die out.
(c) Offspring are weaker.
(d) Offspring are stronger.

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

3. What can be said about the range of species that are closely related?
(a) They are typically large.
(b) They are restricted.
(c) They are unrestricted.
(d) They are typically very small.

4. What typically happens to a species that begins to vary and forms two distinct species?
(a) They will require more resources.
(b) One of the species will become extinct.
(c) They will inhabit more area.
(d) They will be classified as sub-species.

5. What happens to a species if their traits and characteristics are not passed down to the next generation?
(a) They will grow.
(b) They will become extinct.
(c) They will become unique species.
(d) They will change.

Short Answer Questions

1. What do Naturalists suggest is one definite distinction between a species and a variety?

2. What do some scientists say is the reason that cultivated plants do not produce seeds?

3. What term refers to change from one generation to the next?

4. When is the only time a rational conclusion can be reached on a theory?

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

Short Essay Questions

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

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

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

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

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

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

7. Why does Darwin feel the distinction between species variations is arbitrary?

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

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

10. Why are polymorphic species considered an extreme illustration of variation?

(see the answer keys)

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