Question

Did prokaryotes exist before eukaryotes?

Answer 1

Reasons of existence of prokaryotes and eukaryotes:

1. Prokaryotes are primitive life forms.
2. They lacks nucleus.
3. Membrane bound organelles are absent in prokaryotes.
4. They evolved around 3.8 million years ago.
5. Eukaryotes have well defined cell structure.
6. Nucleus and cell organelles are present in eukaryotes.
7. They evolved around 2.7 billion years ago.
8. Hence, prokaryotes came into existence 1.5 million years prior to eukaryotes.