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

Multiple Choice Questions

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

2. 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) One of the species will become extinct.
(d) They will inhabit more area.

3. What other actions do birds use their wings for?
(a) Running.
(b) Mating.
(c) Swimming.
(d) Cleaning.

4. Why are some useless organs sill found in animals?
(a) Selection takes time.
(b) They have not been bred out.
(c) They were used by ancestors.
(d) All organs have a purpose.

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

Short Answer Questions

1. What animal does Darwin use as an example of an intermediate form of a full-land and full-flying animal?

2. What is the struggle for existence caused by?

3. What do naturalists say about the situation of hybrids resembling their parents?

4. What may hinder positive traits from being passed on during natural selection?

5. What type of populations experience more variations?

(see the answer key)

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