IDNStudy.com, ang iyong mapagkukunan para sa malinaw at maaasahang mga sagot. Tuklasin ang libu-libong mga sagot na na-verify ng mga eksperto at hanapin ang mga solusyong kailangan mo, anuman ang paksa.

1. when did the first organisms become noticeable on earth?​

Sagot :

Answer:

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).

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).