What information is found in the dietary guidelines for americans?

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

Which a hammer strikes a compound formed by covalent bounds

Why mature red blood cells has no nucleus