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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 term refers to exactly how species change over time?
(a) Laws of change.
(b) Darwin's Law.
(c) Laws of variation.
(d) Laws of heredity.

2. What do species survive to do?
(a) Migrate.
(b) Eat.
(c) Increase the population.
(d) Survive.

3. What is the struggle for existence caused by?
(a) Quick reproduction.
(b) Little food sources.
(c) Natural selection.
(d) Too many species.

4. What is the primary cause for the struggle for survival between species?
(a) Environmental factors.
(b) Food sources.
(c) Rapid reproduction.
(d) Variation.

5. What do naturalists connect with species that have two or three variations?
(a) Future generations.
(b) Intermediate generations.
(c) Fossil records.
(d) Past generations.

Short Answer Questions

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

2. What is one way to observe the change in a species in a controlled environment?

3. What is the difference between the two types of variations discussed in Chapter 1: Variation Under Domestication?

4. What is likely to NOT affect variations that are consistent among individuals?

5. Why does the point of possible starvation for animals occur sooner than for humans?

(see the answer key)

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