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Leona [35]
3 years ago
9

Please help me with this!

Biology
2 answers:
valentina_108 [34]3 years ago
7 0

Answer:

B: sample 4

Explanation:

This is because amino acids are basic units for proteins

ArbitrLikvidat [17]3 years ago
6 0
The correct answer is Amino acids!
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