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Asked by @#Sophia_Scarlett#@ to Lauren, Marisol, Michael, Sarah, Sophie on 14 Nov 2016.
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Lauren Burt answered on 14 Nov 2016:
Wow, interesting question!
The first life form to roam on earth must have been quite simple, and really small. It must have been bacteria, as the atmosphere wasn’t very nice back then! Bacteria are very small, and can live in some wild places that people probably wouldn’t like hot water and at the bottom of the sea!
Hope that helps!
Lauren 😀
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Michael Rivera answered on 14 Nov 2016:
What a fascinating question!
From what I remember reading before, the first living creatures lived around 4 billion years ago, and they only had one cell. To give you an idea of how extraordinary that is… in comparison, one human has around 37,000,000,000,000 cells in his or her body!
These lifeforms were rich in the element Carbon – and Carbon is the most important element in all living life, giving structure and support to our cells.
The evidence for the first life is shown by some rocks found in Western Australia that are 4 billion years old. The rocks contain a particularly strong signal of carbon, which is why scientists believe that may have been the first life!
I always think science is so amazing because it can answer such impossible questions!
Michael 🙂
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