All humans belong to a single race because
a. there are no physical differences between human...
Biology, 30.08.2019 23:20 phillipsangela014
All humans belong to a single race because
a. there are no physical differences between human groups
b. there are no anatomical differences between human groups
c. all humans can successfully reproduce with each other
d. racial classifications are rigid
Answers: 2
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Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal responds by in order to its core temperature?
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What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.
Answers: 2
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Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%
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