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_____________contain amino acids that are essential for certain metabolic functions.

A. carbohydrates
B. proteins
C. fats
D. all of them

User DaSilva
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2 Answers

5 votes
B. Proteins I got this right and I just took the test
User Anthony Mittaz
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1 vote

Answer:

B. Proteins

Step-by-step explanation:

User Jonas Kaufmann
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