Question

homeostasis is...

a state of balance among all the systems needed for the body to survive and function correctly.

a state of movement from an area of higher concentration to an area of lower concentration.

the movement of substances across a semipermeable cell membrane.

the movement of substances across the cell membrane without spending energy.

Explanation:

Homeostasis refers to the body's ability to maintain a stable internal environment. This involves a balance among all the body's systems to ensure survival and proper function. The other options describe processes like diffusion (movement from high to low concentration), osmosis (movement across a semi - permeable membrane), and passive transport (movement without energy expenditure), which are not the definition of homeostasis.

Answer:

a state of balance among all the systems needed for the body to survive and function correctly.