The earliest lifeform of living things is microorganisms. It was started around 3900 million years ago.
EXPLANATION
To put it simply, the origin of life on earth has not been solved. There are still a lot of ideas being researched for, but there are also a few clear facts to help this. It was already scientifically agreed that life on earth came from a single primitive lifeform. Scientists think that this process took place for around 3900 million years ago. They believe in naturalism, that only natural causes are admitted.
All of the life in the earth began from cells. After the cells gone through development, they became a lifeform thing. Melvin Calvin and Alexander Opatin both wrote a book on this subject. They wrote about the origin of life and states that there must be a process of chemical changes. J.D. Bernal and other people have been discussing cell membrane. If the chemicals in one place are being concentrated, then it performs a special function of the vital function
The earliest life that can be claimed is microorganisms. The microorganisms were found in silica-rich and iron rocks in Canada, exactly in greenstone belt of Quebec (Nuvvuagittuq). These stones or rocks that were found are 4,28 billion years old. The microorganisms are believed as the first and the oldest record of life on earth after the ocean was formed around 4.4 billion years ago.
LEARN MORE
If you’re interested in learning more about this topic, we recommend you to also take a look at the following questions:
How did life begin? brainly.com/question/10715182
Big bang theory: brainly.com/question/3333508
KEYWORD: Life, begin, microorganisms
Subject: History
Class: 7-9
Subchapter: The origin of life
