The state of maintaining a stable internal environment regardless of changing external conditions is called
.

The answer is A because c doesn’t make sense if it’s vibrating wouldn’t we feel or see it?
I think the skin is the largest organ in the human body :)
I hope this helps!
Answer:
cooperation... if no one works together then it's more of a failure than a success
Explanation:
The goal was to see if Earth's ecosystems could be successfully manufactured and maintained elsewhere in the galaxy, should we need to bail on this planet.
It was named Biosphere 2 because it was meant to be the second fully self-sufficient biosphere, after the Earth itself