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Why do you think some organisms have only one cell, but humans have about 100 trillion?

!PLEASE HELP!

Why do you think some organisms have only one cell, but humans have about 100 trillion-example-1

1 Answer

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Humans have loads of cells so they can reproduce so it doesn’t matter if a cell dies e.g. when you cut your skin it fixes itself. Organisms with 1 cell will easily die and probably not live very long unless they can breed.
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