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

2. What tends to occur in large groups of genera?
(a) They live over large areas.
(b) They become varieties.
(c) They divide into smaller groups.
(d) They never inter-breed.

3. In what type of species are variations of the eye found?
(a) Humans.
(b) Crustaceans.
(c) Dogs.
(d) Birds.

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

5. Which term refers to a type of variation that is seen in most or all groups of organisms?
(a) Definite variation.
(b) Organism variation.
(c) Indefinite variation.
(d) Species variation.

Short Answer Questions

1. What may stop a group of carnivorous wolves from growing?

2. With respect to breeders, what leads to the development of different varieties of species when breeding?

3. What is one reason that some species' traits are different from other species?

4. What is unique about white cats with blue eyes?

5. What type of populations experience more variations?

Short Essay Questions

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

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

3. What was Darwin's specific interest in the living species?

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

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

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

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

8. How does natural selection explain why organisms pair with other organisms?

9. How do variations occur in the wild?

10. How does the growth of a population work?

(see the answer keys)

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