Answer the following:

What is organic evolution?

Initially on earth, there was no life form. But due to chemical reactions and evolution, some primitive cells were formed. These primitive cells like bacteria, algae, fungi, and protozoan are the one who had given birth to the complex life forms that we observe today.

These primitive cells had undergone various changes with time due to which they had given birth to complex life forms that we observe today. The process of these slow changes with time through which primitive cells had undergone to give rise to complex life forms is known as organic evolution.

Organic evolution was not a sudden process. It had taken years and generations whose heritable changes with time had gone on modifying and finally gave rise to such complex life forms.