Question

3) The first living organisms on the earth are known as​

Answer 1

Answer:

bacteria

Explanation:

Bacteria have been the very first organisms to live on Earth. They made their appearance 3 billion years ago in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria (the primordial atmosphere was virtually oxygen-free).

Answer 2

● The first living organisms on the earth is known as Bacteria.