Cells, the basic unit of life, are derived from spontaneous generation.
Nature does = environmental stress or changes
Because if you take care of your body/organs by exercise and good diet then your bidy will stay healthy without sickness which results in longer life span
D.lets things enter or exit the cell
<span>The nitrogenous base pairs, which are linked by hydrogen bonds that also hold the strands together, are between this backbone. However, the nitrogenous bases, which are adenine, thymine, cytosine and guanine, pair up so that cytosine only pairs with guanine and adenine links up with thymine.</span>
