Жила была царевна но туда ей бросил лёд
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Answer:
cells and structure
Explanation:
the place where they live cannot be a basis of classification
Answer:
Amino acids are organic compounds that combine to form proteins. Amino acids and proteins are the building blocks of life. When proteins are digested or broken down, amino acids are left. The human body uses amino acids to make proteins to help the body: Break down food.
