Humans belong to which subgroup of mammals?

A. Eutherians
B. Monotremes
C. Cetaceans
D. Marsupials


Answer: A

Biology & Microbiology

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In asexual reproduction, new combinations of genes arise by

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At what point during development does the embryo form three germ layers?

A. when the nervous system develops B. when it forms the inner cell mass C. when it becomes recognizable as human D. when it begins cleavage E. when it forms the gastrula

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The stomach is involved in four of the following. Which one is NOT a function of the stomach?

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This group of proteins can actually punch holes in pathogenic cells

A) complement system B) interleukin I C) fibrinogens D) histamines

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