C. How can we make an artificial heart
The difference at a deeper depth would be water pressure crushing down on them
Answer: Genus
From largest to smallest, the pyramid of binomial nomenclature goes: kingdom, phylum, class, order, family, genus, species.
Selective breeding is something only ascended organisms can adapt to. Us humans use selective breeding. Animals without complex language, artistic capabilities, etc, are unable to adapt to C.
D is your answer.
The answer is hydrogen bond between the complementary strands.
