Question

The single most abundant chemical substance of the body, accounting for 60 to 80?

1) oxygen
2) protein
3) water
4) hydrogen

Answer 1

Water is the single most abundant chemical substance in the body, accounting for 60 to 80%.

Step-by-step explanation:

Water is the single most abundant chemical substance in the body, accounting for 60 to 80%. It constitutes about 70% of the total body mass. Most of the reactions in the cell are carried out in an aqueous medium (water).