Because the cell membrane controls what enters and leaves the cell. It also gives the cell support and protection and helps maintain homeostasis. Hope it helps you
<span> its a Hydrologist i think</span>
<span>Vitalism is a belief that there is difference between living and noliving things. Living things are governed by different principles which are not applicable for nonliving things. The scientist now reject the vitalism since it lack scientific proof. It is considered only as spiritual. modern scientist believe life originated from non living things in the course of time.</span>
To transport materials throughout the body (i think) :)
