Answer:
DNA is the 33 chromosomes. RNA is the protein that exists in viruses... that's All what I know.
Every cell in the body requires energy to grow, repair itself and carry out reproduction...
All functions of the cells are performed by the supply of energy...
<span><span><u> this energy is released in the process of respiration..by the break down of food molecules
.w</u></span></span>ithout it no function can be performed in the body so respiration is vital function of the body....
(a) all cells come from other cells
<span>(b) the smallest living unit is the cell </span>
<span>(c) all living things are made up of a cell or cells </span>
<span>(d) all of the above
it's D
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