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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

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

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

3. What may stop a group of carnivorous wolves from growing?
(a) Migration changes.
(b) The group becomes too large.
(c) The group decreases in numbers.
(d) Climate change.

4. Which of the following occurs when one type of variation causes variation in another part of an organism?
(a) Mulitvariation.
(b) Misallocation of variation.
(c) Correlation of growth.
(d) Normal variation.

5. What is one geographical change that affects islands and continents?
(a) Sea level changes.
(b) Climate changes.
(c) Animal variations.
(d) Rainfall changes.

6. What would increase the likelihood of variations occurring in a given population?
(a) Dramatic environmental changes.
(b) Fewer members of the species to compete with.
(c) Increase in available food.
(d) Domestication.

7. How might one explain the correlation of growth?
(a) Natural selection's way to economize.
(b) Natural selection changes the whole, not just a part.
(c) A natural mistake.
(d) Complication in selection.

8. What typically happens to a species that begins to vary and forms two distinct species?
(a) They will require more resources.
(b) They will be classified as sub-species.
(c) They will inhabit more area.
(d) One of the species will become extinct.

9. What does natural selection say about the most distinct characteristic of a species?
(a) The change is seen in ancestors.
(b) It is the most recently changed.
(c) It will be the smallest change.
(d) It will be the largest change.

10. What happens when species are inter-bred?
(a) Offspring are stronger.
(b) Offspring are weaker.
(c) Variations increase.
(d) Variations die out.

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

12. What is the difference between the two types of variations discussed in Chapter 1: Variation Under Domestication?
(a) Location of variation.
(b) Degree of variation.
(c) The area affected by the variation.
(d) The species that variations happen to.

13. Who believed that humans would fall into starvation because they could not meet the needs of the population?
(a) Maltus.
(b) Darwin.
(c) Newton.
(d) Hooker.

14. In Chapter 4: Natural Selection, what does Darwin suggest about most variations?
(a) They are not helpful for survival.
(b) They are caused by domestication.
(c) They lead to species regeneration.
(d) They are helpful for survival.

15. What type of populations experience more variations?
(a) Diverse populations.
(b) Large populations.
(c) Small populations.
(d) Medium populations.

Short Answer Questions

1. Who is one individual that Darwin mentions as helping him in every way prior to the publication of The Origin of Species?

2. How many objections does Darwin say there are about natural selection?

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

4. What other field of science can natural selection be compared to?

5. What can be said about the range of species that are closely related?

(see the answer keys)

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