By dividing the mass and density, you get volume
The best answer is B.
DNA is sometimes referred to as the blue print of the cell's information because it is the store house in which all genetic information necessary for the cell's survival and reproduction is kept.
Without DNA, there cannot be any continuation of life and no new generation of organisms. All living cells and organisms are essentially made up of protein in different forms. Apart from water, proteins are the most abundant molecules in the cell and body where they serves as the major structural component and are essential for growth and maintenance. Information for all these proteins is found in DNA. Without DNA, there can be no protein hence no life.
Photosynthesis takes place
Nitrogen I think that you are asking about
Still the main basic elements that make up living organisms are in order of presence Oxygen - Carbon - Hydrogen - Nitrogen
And mostly alll of proteins and definitely amino-acids contain carbon, nitrogen, and hydrogen.
