the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce.
Spermatozoa is the form of sperm that is fully matured
Answer and Explanation:
The NCAA also known as the National Collegiate Athletic Association is a non profit member led organization that focuses on the well being and success of college athletes.
Secondary bacterial infections is bad for any body but even worse for elderly because there body can't fight it off because there bodies are wore down the human life cycle is kinda like a car you by it brand new then as it gets older it starts to brake down and ware out then it finally brakes down for good
