When the diet contains an adequate amount of protein, what amino acid can be used by the body to synthesize niacin?

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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