B. Protein
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.
Answer: <em>I think is point a), not sure.</em>
Explanation:<em> if they drive at the same speed, they be closests to a).</em>
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High frequency, short / small wavelength
Its true i took a test and got this one right