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.
More than one to chose from (Elements)
You forgot to attach an image there is not graph to look at
Explanation:
C is the correct answer i.e. splitting of a nucleus
Hope this helps...answer's in the photo :')