The R group is what allows amino acids to form macromolecules with different properties. every amino acid has the same basic structure, the only difference is what the R group is made up of. The similarities allow the amino acids to form a chain while the differences allows them to have different functions. Hope this helped!
The chemical composition of bone is made up of collagen and calcium, which makes bones stronger
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With butter
With spices
With other foods like rice and beans
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Skin cells would die and not be replaced.
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a option
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