Your body works efficiently to maintain its internal balance despite the fact that external conditions often change. this is an example of .

Organisms have the ability to regulate their internal environment in order to maintain a steady state called homeostasis. It is nature of the organisms to balance their body systems at the end of the day like how nature reinvents himself when he is too stresses. Living organisms do that to, by sleeping after doing a very demanding job.

The answer is a i believe