Answer:
20
Explanation:
Add all of them and then divide by how many of the terms there are.
A. The assumption that the human body was similar to the anatomy of other animals
B. is the correct answer because not all genes are actively coding,RNA is not code for protein synthesis, also DNA does not contain a number of segments that code for specific proteins.
Well, nitrogen is the gas that makes up 78% of the earth's atmosphere.
I would guess its in the air that we breathe. I am not really sure. Just basing this answer off of research.