2 points 1. Starch is a large molecule consisting of many glucose units joined by
glycosidic bonds. Starch is produced by most green plants and is stored in
roots, stems, fruits, and seeds. Starch is present in large amounts in plants
like potatoes, wheat, corn, rice, and cassava. Because of this, starch is the
most common polysaccharide in human diets.

b. the carbon cycle ensures living things have a source of hydrogen

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.