
Homeostasis refers to a system's ability
to regulate its internal ENVIRONMENT.
The Big Bang Theory Season 6, Episode 2

About ENVIRONMENT, sexual education.
Money Heist Season 1, Episode 8

...who is steady in the face of danger,
so I recommend an unsafe ENVIRONMENT.
The Big Bang Theory Season 6, Episode 18

...in a reward-based ENVIRONMENT?
The Big Bang Theory Season 8, Episode 23

- ...they put him in a simulated ENVIRONMENT.
- Interesting.
The Big Bang Theory Season 8, Episode 6