Biology defines the very basis of our physical, chemical, and molecular existence. It is the natural study of life and living organisms. It has helped us understand the basic units of cells, genes, and heredity of complex molecular structures. It is only with the help of biology that we are able to develop medicine for different diseases. Although Modern biology is very advanced, the traces of the studies related to it dates back to 384-322 BC. It helped us understand how the living species have evolved over a period of time.