
it was an achievement
in the field of BIOLOGY.
The Big Bang Theory Season 5, Episode 12

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

Let's go to the BIOLOGY lab and
find you some nice yummy mice.
The Big Bang Theory Season 5, Episode 7

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

and took out a book on BIOLOGY
to see what whores did.
The Big Bang Theory Season 7, Episode 22