16. It is the result of the strong contractions of the uterine wall that occur before and during menstruation. a. bloating b. cramps c. menstrual cramps d. nausea 17. It controls starts the menstrual cycle a. endocrine glands c. pituitary glands b. pineal glands d. reproductive glands 18. The stability of an organism to maintain internal equilibrium by regulating processes. a. balance b. hormone c. homeostasis d. hormonal imbalance nroduced in the hody that controls and regulates theb​