All amino acids have a central carbon with four components attached to it. one of these components is called the r group. which of the following best describes the r group? a. the r group is what stabilizes the amino acid. b. the r group is the same in all amino acids. c. the r group gives the amino acid unique characteristics.

Why does miranda have that particular vision of dr hildesheim answer?

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.