in the world who is came first
Answers
Answer:
Animals is first come in the world
Answer:
The answer is highly debated
Explanation:
Most scientist agree that complex organisms evolved from smaller, simpler, single-celled organisms. According to a recent study conducted in 2017, the earlies life forms discovered were Stromatolites. However, this does not mean that they were indeed, the first life forms to have existed on our planet. Note that stromatolites were the earlies organism discovered KNOWN to man. According to RNA world hypothesis by Carl Woese, Francis Crick and Leslie Orgel, RNA was the earliest life forms to exist. And quite frankly, there are quite. few evidences to prove that. Perhaps the strongest evidence being that hnRNA, which is a predecessor of mRNA contains sequences that code for proteins as well as sequnces that do not. The presence of these non-coding factors is linked with antiquity. Moreover, the catalysing nature of RNA and that it is less stable compared to DNA also gives rise to the thought that perhaps DNA is more stable because it evolved from RNA.
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