Idk the options but it could be genetic variation
C)All DNA is made of the same components so there would be no difference.
Is the answer.
Biological structures like DNA, proteins and cells all depend on molecules. ... Neurotransmitters like epinephrine are pretty simple molecules, but without them our nervous system couldn't work. Oxygen, containing just two oxygen atoms, is a very simple molecule, and it is certainly essential to living things.
Digestive System. Its what makes you bm. And your bm is waste