Which type of macromolecule would best be suited for a bodybuilder looking to increase the size of his biceps? * A. Carbohydrates
B. Enzymes
C. Lipids
D. Proteins

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.