Question

Which were the first organisms to appear on earth?

Answer 1

Answer:

micro-organisms are the first organisms to appear on the earth.

Answer 2

First living organisms on earth where formed 4 billion years ago.

These organisms are called microorganisms or microbes.

The first formed microorganisms lacked a a perfect in nucleus

Such organisms are categorised under prokaryotes.

Here in prokaryotes Pro means primitive and karyote means nucleus.

These organisms also lack a a cell membrane.

Organisms are formed in the early stages of the completion of formation of Earth.