<p>basic structural and functional unit of living organisms.</p>
<p>cell</p>
<p>according to the <em>principle of complementarity of structure and function, </em>the biochemical sctivities (functions) of cells are closely related to their \_\_\_\_\_\_</p>
<p>shapes/ forms</p>
<p>functions of cells:</p>
<ul><li>cell metabolism</li><li>synthesis of molecules</li><li>communication</li><li>reproduction</li></ul>