<span>makes a copy of itself during cell division. </span>
It serves as a barrier to biological activity.
Different types of cells reach different sizes. In general the reasons for cell size limits are due to the mechanisms needed for cell survival and how cells requirements are met by the structures that form and are contained within cells.
the lungs They are compounds that block the growth and reproduction of bacteria. Both are caused by bacteria. However, the bacteria that cause tuberculosis break down tissue, whereas the bacteria that cause diphtheria release toxins.
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