Endocrine and circulatory (C) Endocrine system consists of glands and the hormones they secrete whist the circulatory system is the blood or as I like to call the “transport system” of the body.
Answer:
Mars
Explanation:
Sent by SpaceX, Curiosity traveled Mars and took many useful pictures and captured its space.
They give off hormones in which prevent obvulation.
20 is the Number of Neutrons of potassium.
