Which is a carbohydrate?

A.) nucleotide

B.) nucleic acid

C.) amino acid

D.) polysaccharide

What do science, technology, and disease have to do with each other?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

About __ of the mass of the cell is water