Proteins consist of one or more polypeptide chains. Each polypeptide chain consists of smaller sub-units or amino acids that are linked together. Amino acids serve as the building blocks of polypeptides, and polypeptides serve as the building blocks of proteins
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The boy who ran for class president is the football captain.
The correct pronoun is who.
The pronoun which is used for objects, not people.
Honestly, I know that it is either A. or D. I would most likely go with D.
Answer:
Saki's short story, ''The Mouse,'' explores the overly worried mind of the main character, Theodoric, as he frets his way through an odd predicament. In order to dislodge a mouse from his clothing, Theodoric must strip down in the middle of a train car, in front of a young woman.
Explanation:
Because of, due to, consequently, if then, since, so, thus, as a result, therefore.