Answer:
IJLKENWCDPOJ2GAWDVM,.ZC 0GJJJ;ML
Explanation:
It is D
:D =-O :-P ;-) :-( :-) :-! :-$ B-) :O :-* :-D :'( :-\ O:-) :-[
Well a mutation is like a change in the DNA and so if there was a mutation in the antártica fish, something in their genes would change. If that mutation has a positive effect on it, then that mutation would be passed down to the generations of fish, helping that fish with its survival or something