B. I believe if not B. that it has to be D.
Answer: produces estrogen - ovaries
Develops the immune system in childhood - thymus
Explanation:
During exercise, many chemical changes occur in the body, including a drop in blood ph, which can be very serious. how is the body able to cope with such changes?
The body is able to cope with such changes because the body's metabolism becomes more active, causing the body to require more oxygen (which leads you to breath faster and deeper)
Lol lol lol lol lol lol lol ez go to get some help kid
Using more time and energy you obviously have not used your time and /or energy efficiency.
