Eukaryotic and prokaryotic cells contain many membrane-bounded structures in them that are assigned to perform specialized functions for the normal activity of the cells. These structures are called organelles.
<h2>Explanation</h2>
The eukaryotic cell contains many organelles like endoplasmic reticulum (smooth and rough endoplasmic reticulum), ribosomes, Golgi apparatus and the most important, the nucleus.
Each of these has their particular role and the roles of all these collectively lead to the survival and normal functioning of the cell.
Cellular organelles are the internal organs of a cell. They are responsible for keeping the cell alive. They do this by bringing in food for the cell, getting rid of waste, protecting and repairing the cell, and helping it grow/reproduce.
When water evaporates through the leaves, a pull is created through the xylem, and water moves back to the leaves. This is known as the transpiration pull.
Without the reproductive system, humans are not able to reproduce meaning the human species would go extinct. With the reproductive system, humans are able to create more humans, in this way humans do not go extinct.