Proteins are made by joining __ into long chains called polypeptides

Amino Acids

Explanation: Proteins are made out of building blocks that are called amino acids. When two or more amino acids are stuck together in a chain, they are called a polypeptide. Every link between the amino acids, where the energy attraction is holding all of the blocks together, is a peptide bond.

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flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.