Answer: produces estrogen - ovaries
Develops the immune system in childhood - thymus
Explanation:
Answer:
Why are muscle and fat levels the only factors influencing flexibility impacted by personal decisions? Age, gender, and joint structure cannot be changed. ... Muscle stiffness that reduces flexibility often results from the overuse of muscle, but inactivity also weakens muscles and can make them more susceptible to injury.
Answer:
uncontrolled kind of drugs block the effects of certain nuerotransmitters on the brain
Explanation:
Answer:
this question answer is 6
Answer:
the increase of your body temperature causing a fever
