only do something dangerous and health risking on your days off
I believe soccer is an aerobic exercise because your very reliant on air constantly jogging and sprinting. while anaerobic is a short lasting high intensity exercise not really reliant on oxygen. <span />
Answer: produces estrogen - ovaries
Develops the immune system in childhood - thymus
Explanation:
I think the answer to this is D.
The Endocrine System regulates the body's metabolism, growth, and functions of the sexual organs. It consists of glands that secrete hormones directly to the circulatory system that are carried throughout distant target organs. This system is responsible for controlling the chemical functions of cells, tissues, and organs through the secretion of different types of hormones.
The Endocrine Systems includes the different glands (e.g. adrenal, parathyroid, thyroid, and pituitary), ovaries, pancreas, and testes.