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Which is a part of the cell theory?

A)cells come from pre-existing cells
B)cells have a nucleus
C)organisms with one cell must be seen with a microscope
D)organisms must have more than one cell to live

User Ron Burk
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2 Answers

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Answer: A) cells come from pre-existing cells

Step-by-step explanation:

User Maria Sakharova
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A, I am pretty sure :) 
User Curtis Fenner
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