Homeostasis is the regulation of an organism’s internal environment to maintain conditions suitable for life. Homeostasis requires
A) competition between the body’s systems.
B) balance between all of the body’s systems.
C) the body’s systems to act independently of each other.
D) maximum growth of all types of cells and tissues within the body.

B) balance between all of the body’s systems.

Explanation: Homeostasis is the regulation or maintenance of a stable internal environment of the body. In achieving homeostasis, all the organs and systems of the body must function harmoniously to maintain a balance.

If balance is not maintained by the organs and systems of the body, a disease or disorder may arise.

Example of homeostasis is the secretion of insulin by the pancreas following a meal to regulate the blood glucose concentration.

dna is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands