Which characteristic of life best describes the process of homeostasis

Responding to the environment is the characteristic of life that best describes the process of homeostasis. Homeostasis is the ability of a body or living organism to adjust its internalenvironment in order to maintain astable equilibrium regardless of the external changing conditions.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

c. live where it’s cold and icy