Responding to the environment is a characteristic of life best shown by which example?

The correct Answer is A.) Because An Environment is the nature in the world as far as the way we live. Humans, animal's, plants and climate.

so Therefore by a human shivering on a cold day the human body is responding to the cold climate of the environment

The answer is a human shivers on a cold day or I could say letter "A".

explanation:

Nature is representing the cold day and the human shivers, well its talking about a human getting cold during the days that are cold. Other wise it wouldn't be any other answer only because none of the other answers mentioned a human at all.

And I also took the test.