Biosphere. Bio means life, and Biosphere means ALL life on earth.
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.
What substances are involved in controlling the production of sperm and eggs in humans? Hormones.
Answer:
The answer is letter A.
Explanation:
A loss-of-function mutant in the gene encoding Mad2.
