Answer:
F. Is fatty acid molecule.
Explanation:
It's unsaturated fatty acid.
Fatty acid consists of a straight chain of an even number of carbon atoms, with hydrogen atoms along the length of the chain and at one end of the chain and a carboxyl group (―COOH) at the other end.
It is that carboxyl group that makes it an acid (carboxylic acid).
the intercourse of a human or animal to make babies
The homology of animals is based on scientists current understanding on the evolutionary history of living species.
A deep ocean current. its is caused by a combination of temperature and salinity driven currents and surface level wind-driven currents.
I might be wrong, but I think the answer to this question is D.