based on the timeline what organism was first discovered? in what way was it discovered?
Answers
Answer:
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The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old.
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).
The timeline of the discovery of organisms
The history of life on Earth can be reconstructed in a variety of ways. Biologists primarily rely on dating fossil-bearing rocks and studying the "molecular clocks" in living organisms' DNA for this purpose.
This is the "best guess" we currently have for how life first evolved on Earth. This deadline might be adjusted as new information becomes available. It is possible that the first life began in undersea alkaline vents and that it was based on RNA rather than DNA.
Bacteria and archaea are the two major groups of life that descended from a common ancestor at some remote time in the past.
It is still unknown how, when, and in what order the various groups split.
For more such Questions on the Discovery of Organisms: https://brainly.in/question/47133813
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