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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 5: Laws of Variation.

Multiple Choice Questions

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

2. What is one reason that some species' traits are different from other species?
(a) Climate.
(b) Habitat.
(c) Inheritance.
(d) Natural selection.

3. What is the best example of traits that continue to vary?
(a) Migration characteristics.
(b) Primary sexual characteristics.
(c) Mating habits.
(d) Secondary sexual characteristics.

4. Which term refers to organisms with no distinct gender?
(a) Single cell.
(b) Hermaphrodite.
(c) Polymorphic.
(d) Neutral.

5. What do some scientists say is the reason that cultivated plants do not produce seeds?
(a) Poor nutrition.
(b) Poor soil.
(c) Instinct.
(d) Genetics.

Short Answer Questions

1. In Chapter 4: Natural Selection, what does Darwin suggest about most variations?

2. What bodily system do some scientists believe is responsible for producing individual differences?

3. Why do domestic ducks have lighter wings and heavier feet then wild ducks?

4. What would a variety do in order to become a new species?

5. As an example of a variation, what does Darwin indicate in Chapter 1 that is a change due to improved diet?

(see the answer key)

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