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The oldest life fossils are very simple - prokaryotic no doubt and not that different from many of today's prokaryotic cell structure. Evolution in general seems to be an increase in complexity. Thus the first cells would logically be prokaryotic, or at least noneukaryotic. This is because prokaryotic cells are much simpler than prokaryotic cells which contain multiple membranous organelles to complicate their structure. Note that just because the oldest life fossils are prokaryotic does not prove that they preceeded the eukaryotes or that they were the VERY FIRST life on earth. Can there be simpler life than prokaryotes one wonders? However, no fossils have been found that are older than those 'first' prokaryotes, and as I have said it would be illogical for more complex eukaryotes to precede the simpler prokaryotes. The oldest fossils therefore (between 3.5 and 3.8 billion years old) are thus accepted as both the first life and prokaryotic.
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∙ 14y ago
Wiki User
∙ 12y agoAside from the awkward grammar, no, they were not. Protists are actually Eukaryotic.
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∙ 13y agoThe have no membrane enclosed organelles. This is a feature exclusive to Prokaryotes.
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∙ 12y agoprokaryotes where not the first cell on earth, protocells where
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∙ 12y agoThey are unicellular (one-celled) organisms and are closer to the original cellular organism in the line of evolution.
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Which cells are smaller eukaryotic or prokaryotic?
A prokaryotic cell is smaller because it has no nucleus and not as many organisms as a eukaryote
First true prokaryote cells were formed from?
The first true cells were prokaryotic cells. These were the first living organisms and were simple life-forms that didn't have a nucleus.
What prokaryotic cells that were the first to add significant quantities of oxygen to Earth's atmosphere are classified as?
Cyanobacteria
The first eukaryotic organisms on earth were?
Protists
Which organisms have the largest eyes on earth?
fish were they first organisms to have eyes
Were protist the first prokaryotic organisms on earth?
Yes
Which types of organisms developed first due to the early environmental condition on earth?
spongesThey were prokaryotic and anaerobic organisms developed first due to the early environmental condition on earth.
Were the first organisms prokaryotic or eukaryotic?
Prokaryote
The first organisms were most probably?
prokaryotic
What are the oldest cells on earth?
The first cells on earth were likely prokaryotic. This is because the prokaryotic cells are not complex like eukaryotic cells.
Which cells are smaller eukaryotic or prokaryotic?
A prokaryotic cell is smaller because it has no nucleus and not as many organisms as a eukaryote
Was the first cell on earth pro or eukariotic?
prokaryotic.
Protist were the first organisms to exhibit cell specialization which was only possible when they?
You should have learned it in class!
Were prokaryotic cells the smallest cells and the first cell on earth?
YES!
When were the first prokaryotic cells found on earth?
About 3.5 billion years ago
First true prokaryote cells were formed from?
The first true cells were prokaryotic cells. These were the first living organisms and were simple life-forms that didn't have a nucleus.
What type of organisms first appeared on earth?
Earth's first organisms were the Single- Celled organismsBacteriaFungiAnd Protozoa
