What percentage of water occurs of the total cellular mass?

How are living organisms formed based on chemical organization?

How can the analysis of chemical components be done?

The $80 \%$ living component of a cell is made up of.....

Arrange the following elements in descending order of their contribution to percentage weight of the human body.
$(a)$ Oxygen
$(b)$ Carbon
$(c)$ Hydrogen
$(d)$ Nitrogen
Choose the correct answer from the options given below:

Which of the following forms more than $\frac{1}{2}$ of a cell?