Pituitary gland: Responsible for growth and reproduction, it secretes and stores hormones and influences how other glands act.
Adrenal gland: It’s responsible for producing certain steroid hormones, including aldosterone and cortisol.
It's a vague description of the two.
The joining of an egg and a sperm
Dehydration synthesis is when two monomers (like amino acids) are joined together or linked, by removing water. Water is the by-product of this process