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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 3: Struggle For Existence.

Multiple Choice Questions

1. 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.

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

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

4. What is required for a species to continue to grow?
(a) Strong males.
(b) Food supply.
(c) Other species.
(d) Land.

5. What species type is known for a lot of variation between individuals?
(a) Bimorphic.
(b) Trapamorphic.
(c) Polymorphic.
(d) Trimorphic.

Short Answer Questions

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

2. What results as a climate becomes more hostile?

3. Concerning the difficulty of defining species, sub-species, and variations, what does Darwin suggest about differences?

4. Which of the following is a radical change in the structure or behavior of an organism?

5. What does the absence of complete facts with Darwin's theory open the theory up to?

(see the answer key)

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