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

2. Why does the point of possible starvation for animals occur sooner than for humans?
(a) Humans can rely on dietary supplements.
(b) Humans artificially produce food.
(c) Humans can last longer on less food.
(d) Humans have better hunting tools.

3. What type of populations may be more likely to become extinct?
(a) Medium populations.
(b) Small populations.
(c) Large populations.
(d) Diverse populations.

4. What do most organisms have a very good ability to do?
(a) Reproduce.
(b) Adapt.
(c) Migrate.
(d) Alter their biological makeup.

5. What happens to a species if their traits and characteristics are not passed down to the next generation?
(a) They will become extinct.
(b) They will become unique species.
(c) They will change.
(d) They will grow.

Short Answer Questions

1. What is unique about variation in polymorphic species?

2. Which term refers to a type of variation that is NOT inherited and only affects individuals?

3. What can some amount of variation be attributed to?

4. What is the fate of traits that are neither helpful nor unhelpful for survival?

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

(see the answer key)

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