A nutrient has crossed the intestinal lining and entered the bloodstream, but has not yet been used by cells. Which process has occurred?

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A absorption
B egestion
C assimilation
D excretion

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Answer: A. absorption

Absorption: The movement of digested nutrients across the intestinal lining into the bloodstream or lymphatic system. Since the nutrient has crossed the lining and entered the blood, this phase is complete.

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A nutrient has crossed the intestinal lining and entered the bloodstream, but has not yet been used by cells. Which process has occurred?

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