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blagie [28]
3 years ago
5

How many amino acids are common to all living systems?

Biology
1 answer:
ioda3 years ago
3 0
I think only twice but I'm not for sure
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The Last Universal Common Ancestor (LUCA) is the most recent common ancestor of all current life on Earth, estimated to have lived some 3.5 to 3.8 billion years ago

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Explanation:

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Which of the following structures is NOT found in some prokaryotic cells?
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The answer would be:

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Axial filament is a bundle of flagella that are wrapped around the cell's body.

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