What do polysaccharides and proteins have in common? A. They both have a carboxyl group.

B. They are both composed of repeating units.

C. They both have nitrogen.

D. They are both found in DNA.

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

Draw the structure of dna nucleotide with adenine as nitrogenous base

What organ systems are working to you cool down after a workout?