The structure of proteins often determines the function. Describe the structures of spider silk and the NA+/K+ pump, explaining clearly how the
way the protein is built allows it to do the job is was built for.

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.

answerblank(1); afferent neurons; blank(2); efferent neurons;