
is baked into
our BIOLOGY.
The Big Bang Theory Season 12, Episode 22

He went to work
in his friend's BIOLOGY lab.
The Big Bang Theory Season 5, Episode 16

Don't blame me, blame your pal BIOLOGY,
The Big Bang Theory Season 10, Episode 5

- What about BIOLOGY?
- What?
The Big Bang Theory Season 1, Episode 12

You know, BIOLOGY.
The Big Bang Theory Season 1, Episode 12