Homeostasis, aka your body maintaining life and the right amounts of stuff.
Answer:
Body systems are used throughout your body to help you move and to live like the heart for example.
B. Scarcity of drinking water
Answer:
D. pituitary gland
~+. lil more info .+~
The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.