There are four brain waves. They determine brain death. :)
Answer:
The excretory system is a close partner with both the circulatory and endocrine system.
Explanation:
Answer:
testes
Explanation:
Gonad, in zoology, primary reproductive gland that produces reproductive cells (gametes). In males the gonads are called testes; the gonads in females are called ovaries. (see ovary; testis).
