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.
Five organs are in the human body
Answer:
I'll take a look
Explanation:
A Recessive trait is the situation in which a trait is expressed, this occurs when an organism has two recessive alleles.
