The many roles of blood include delivering nutrients and oxygen to cells, ... the ability of a system or living organism to adjust its internal environment to maintain a stable ... It relaxes the blood vessels and capillaries which may help with gas ...

The many roles of blood include delivering nutrients and oxygen to cells, Homeostatic is the ability of a system or living organism to adjust its internal environment to maintain a stable equilibrium. It relaxes the blood vessels and capillaries which may help with gas exchange.

Explanation:

The question asked to fill in the gap with the right words .

Generally, the short essay talks about the function of the blood in the body.

Homeostasis is the tendency of the body to maintain a stable condition  within the limit it can survive. Homeostasis is a self regulating property of the cell, tissues and organisms  that allows the maintenance and regulation of the body to function properly. Usually the organism adjust it internal environment to maintain a stable equilibrium.

Blood is usually pumped from the right side of the heart to the blood vessel of the lungs .When blood enters the pulmonary capillaries , new oxygen enters the blood and carbon-dioxide is removed. This process is what is called gas exchange.

answer; i believe the answer is (polygenic inheritance;