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

Multiple Choice Questions

1. What types of species forms are NOT found in nature?
(a) Transitional.
(b) Collaborative.
(c) Competitve.
(d) Natural.

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

3. What type of relationship do organisms have with one another?
(a) Cooperative.
(b) Environmental.
(c) Competitive.
(d) Genetic.

4. What term refers to change from one generation to the next?
(a) Generational change.
(b) Growth.
(c) Natural process.
(d) Hereditary modification.

5. In extreme environments, what are species in competition with?
(a) Food source distruction.
(b) Climate.
(c) Migration needs.
(d) Other species.

6. Which term refers to a type of variation that is seen in most or all groups of organisms?
(a) Indefinite variation.
(b) Organism variation.
(c) Species variation.
(d) Definite variation.

7. Why do domestic ducks have lighter wings and heavier feet then wild ducks?
(a) Domestic ducks walk less.
(b) Domestic ducks walk more.
(c) Different species.
(d) This is a false statement.

8. What results as a climate becomes more hostile?
(a) Fewer species.
(b) Less food.
(c) More competition.
(d) Better cooperation between species.

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

10. What would a variety do in order to become a new species?
(a) Reduce in numbers.
(b) Inter-breed.
(c) Migrate.
(d) Exceed in numbers from the parent species.

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

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

13. What do Naturalists suggest is one definite distinction between a species and a variety?
(a) Domestication.
(b) Size of groups.
(c) Geographical range.
(d) Life span.

14. In Chapter 1: Variation Under Domestication, what animal does Darwin give as an example for being perfectly adapted for catching its food?
(a) Tiger.
(b) Bull.
(c) Beaver.
(d) Woodpecker.

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

Short Answer Questions

1. How might one explain the correlation of growth?

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

3. Concerning the difficulty of defining species, sub-species, and variations, what does Darwin suggest about differences?

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

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

(see the answer keys)

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