Small molecules are used as the basic units in the synthesis of large food molecules. Which statement is correct?

A. mino acids are basic units of carbohydrates.

B. Fatty acids are basic units of glycogen.

C. Glycerol is a basic unit of oils.

D. Simple sugar is a basic unit of protein.

a is the answer

Explanation:

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

answer; ///(b) it is composed of four protein chains and four heme groups;