I believe all options are correct...
Um. Yes? The braij is responsible for the nervous system.
Explanation:
Single lensed Microscope for observing bacteria and protozoan
Answer:
From The School of Biomedical Sciences Wiki. Complementary base pairing is the phenomenon where in DNA guanine always hydrogen bonds to cytosine and adenine always binds to thymine. The bond between guanine and cytosine shares three hydrogen bonds compared to the A-T bond which always shares two hydrogen bonds.