Which of the following explains why there are so many differences in the properties of peptides and proteins? a) several amino acid sequences are possible for proteins and peptides b) some proteins are enzymes while others are not c) proteins and peptides include nitrogen d) amino acids form proteins and peptides

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?