3 sites in a ribosome:
The charged tRNA first enters the ribosomal A site...then moves to the P site and finally to the E site.
Because they only ask for 2 I would say A then P.
The Answer is A. The presence of sodium potassium pumps has nothing to do with water moving in and out of cells.
ans is D. Most items are features in the spinal cord, but the hippocampus is in the brain.
