Answer: repeated
Explanation: Redundancy in the genetic code means that most amino acids are specified by more than one mRNA codon.
eukaryotic I believe because they are the cells that have a nucleus enclosed within membranes.
C) mechanical energy.
hope it is correct
I would say the last option, the tilt of the axis/ rotation of the earth. Sorry if this is late, it says you asked a week ago. Hope this helps
