In which of the following do both amino acids have a nonpolar side chain?
A) cysteine and glycine
B) cysteine and methionine
C) histidine and methionine
D) phenylalanine and tryptophan
D
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The slowly increasing distance between South America and Africa is due to
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You are studying Physical Geography. Speculate on why physical geographers should be interested in the patterns of globalization
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Which of the following is NOT a type or agent of physical weathering?
a. frost wedging b. fire c. plant roots d. salt crystal growth e. spheroidal weathering