How does the endocrine system affect the body's functions? It secretes enzymes directly into the bloodstream.
It secretes hormones direcuy into the bloodstream.
It secretes enzymes through ducts to the surface of organs.
It secretes hormones through ducts to the surface of organs.

B.) It secretes hormones directly into the bloodstream.

the maintenance of fluid balance during exercise. author information: fluid supplementation is necessary for exercise in which fluid losses must be offset by intake to avoid the negative effects of hypohydration on health and performance.