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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 6: Difficulties on Theory.

Multiple Choice Questions

1. 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 are helpful for survival.
(d) They lead to species regeneration.

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

3. What is one function that cave dwelling animals lost through natural selection?
(a) Hearing.
(b) Touch.
(c) Taste.
(d) Sight.

4. What does natural selection say must be true for change to be preserved?
(a) It must be universal.
(b) It must be genetic.
(c) It must be unique.
(d) It must be beneficial to the species.

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

Short Answer Questions

1. What do scientists attribute to organs that cannot be explained by natural selection?

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

3. Which species require more years for change?

4. What happens to a species if their traits and characteristics are not passed down to the next generation?

5. What is the difference between the two types of variations discussed in Chapter 1: Variation Under Domestication?

(see the answer key)

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