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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 the fate of traits that are neither helpful nor unhelpful for survival?
(a) They are not subject to natural selection.
(b) They are subject to natural selection.
(c) They are subject to artificial selection.
(d) The are bred out of the species.

2. What is unique about variation in polymorphic species?
(a) All invertibrates.
(b) Not dependent on internal factors.
(c) Dependent on external factors.
(d) Not dependent on external factors.

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

4. What other field of science can natural selection be compared to?
(a) Geology.
(b) Physics.
(c) Biology.
(d) Psychology.

5. What type of selection primarily affects the reproductive characteristics of a species?
(a) Artificial selection.
(b) Natural selection.
(c) Environmental selection.
(d) Sexual selection.

Short Answer Questions

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

2. What do naturalists connect with species that have two or three variations?

3. What is the struggle for existence caused by?

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

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

(see the answer key)

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