I’m not sure sorry! But hope someone answers!
Chemoreceptors is the answer
Neurological - by nerves
Endocrinological - by blood and secrets
The correct answer is uracil.
<span>Uracil is one of the pyrimidine nucleotide bases which is the component of nucleic acid-RNA. In RNA, uracil binds to adenine via two hydrogen bonds (complementary binding). Uracil is not found in DNA, it is replaced by thymine because it is thymine’s demethylated form.</span>
I'd say A: tidal waves. B, C, and D don't really seem to fit for me.
