Which of the following is an example of homeostasis?

Humans wear pajamas to bed.

Humans inhale when they need oxygen.

Students are quiet in the library.

Humans choose their friends.

Homeostasis is internal stable balance. Therefore humans inhale when they need oxygen

Homeostasis is the ability for a body or cell to stay stable or in equilibrium.

In this case, answer choice B is the best answer. Humans inhale to receive oxygen and doing so will allow their bodies to remain stable.