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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 8: Hybridism.

Multiple Choice Questions

1. Which of the following is a radical change in the structure or behavior of an organism?
(a) Extinction.
(b) Growth.
(c) Increased illness.
(d) Monstrosities.

2. How is the practice of purposeful selection seen throughout history?
(a) No change in species.
(b) Relics from ancient civilizations.
(c) Natural change in species.
(d) Written records.

3. With respect to breeders, what leads to the development of different varieties of species when breeding?
(a) Natural selection.
(b) Genetic selection.
(c) Purposeful selection.
(d) Accidental selection.

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

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

Short Answer Questions

1. What is the primary cause for the struggle for survival between species?

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

3. What do some scientists say is the reason that cultivated plants do not produce seeds?

4. What type of populations may be more likely to become extinct?

5. What does natural selection favor in terms of increasing population?

(see the answer key)

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