Its called the independent variable I think.
Cells<span> are the basic units of life. </span>Cells<span> can exist by themselves, like bacteria, or as part of a larger organism, like our </span>cells<span>. </span>Viruses<span> are non-living infectious particles, much smaller than a </span>cell, and need a living host to reproduce. The genetic material of thecell<span> is DNA, a double stranded helix.</span>
Cytoplasm is a jello like substance that hold all the cells organelles in place|
Imaging a fruit cup with jello in it,the fruits in the cup represent organelles and the jello in the cup represents cytoplasm.