The answer is D because the layers all the way at the bottom had to be there for other layers to be built on top
Answer:
In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond. ... Both of these atoms can form a hydrogen bond with oxygen atoms of different water molecules.
Explanation:
C. Eukaryotic heterotroph correctly describes animals, and fungus or bacterias would would be prokaryotic.