Phosphate has 4 oxygen atoms bound to a central phosphorus atom, and is present in all living cells. When two phosphates combine and lose a water molecule, they form pyrophosphate.
But they still are not sure, why ? The answer can only come from the creator.
Here are the points that correlate with the creator whom they fail to acknowledge:
" Phosphate has 4 oxygen atoms bound to a central phosphorus atom "
Since Oxygen is Invisible to the human eye, it Correlates to Yahweh who is SPIRIT and the Source of all things, organic and inorganic.
In that there are 4 Oxygen Atoms, they correlate to the 4 letters forming the name Yahweh ( Y H W H / Y H V H )
So these 4 is centered around the one God of the Universe, Yahweh.