Question

which statement describes homeostasis? (1 point)

it is a process of maintaining an external state of balance for an organism.

it is how an organism reacts to external factors.

it is how an organism reacts to internal factors.

it is a process of maintaining an internal state of balance for an organism.

Explanation:

Homeostasis is defined as the process by which an organism maintains a stable internal environment (internal state of balance) despite changes in internal or external conditions. The first option is incorrect as it mentions "external state". The second and third options describe responses to factors, not the process of maintaining balance. The fourth option correctly states it is about maintaining an internal state of balance.

Answer:

D. It is a process of maintaining an internal state of balance for an organism. (Note: Assuming the options are labeled A, B, C, D in order. If the original options have different labels, adjust accordingly, e.g., if the last option is labeled as the fourth, then the answer is the fourth option's text as above.)