Question 1

The ancestral primate stock split into two major lineages,one of which gave rise to _______________,which include lemurs,tarsiers,and lorises.

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Question 2

Homo sapiens owes much of its cultural and intellectual achievements to our ancient tree-living or _____________ ancestry.

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Question 3

The _____________ is a rodent that exhibits periodic great increases in their population,followed by significant declines.

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Question 4

Pouched,viviparous mammals are called ______________.

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Question 5

The only flying (not gliding)mammals are the ___________.

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Question 6

Delayed ____________ in many mammals is a mechanism by which gestation is postponed after mating.

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Question 7

Since the discovery of Lucy,new finds of even older hominid fossils have extended our knowledge of human ancestry.For example,in 2001,the sands of Chad yielded skeletal remains of the most ancient hominid yet discovered,_____________________.

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Question 8

If you were to examine one physical characteristic of a mammal to learn about its life style,you would look first at its ____________.

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Quiz 20: Mammals