Which statement best shows how primary structure relates to protein function?
a)the shape and chemistry of an enzyme's active site determine its function.
b)high temperatures cause proteins to denature.
c)proteins are sensitive to changes in ph .
d)changing one amino acid in the protein hemoglobin causes sickle-cell anemia.

changing one amino acid in the protein hemoglobin causes sickle-cell anemia

Explanation:

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typical characteristics of global cities include all of the following except being culturally isolationist.

explanation:

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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