B, for sure. Producers, Like grass and Flowers need water to make food. Consumers, like Cats, Snakes and Boars need water to drink so our internal systems will function properly.
Im not sure if decomposers need water, but if there is less water then more animals die and they get food. so, not sure about that one.
Hydrolysis is the process used to link amino acids together.
The bond found between amino acids is a peptide bond.
A disaccharide is two monosaccharides linked together. A polysaccharide is multiple monosaccharides linked together. An example of a disaccharide is sucrose and an example of a polysaccharide is starch.