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.
Answer:
evolve I believe is the answer
Trees can be made again . Water is a natural resource fuel is too . Wind
1.Crash.
2.Disease.
3.Exponential growth.
4.Carrying capacity.
5.World population in 1800.
