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What instrument was essential to the development of the cell theory?

A. the camera
B. the test tube
C. the x-ray machine
D. the light microscope

2 Answers

0 votes
D. the light microscope
User RTXGamer
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7.5k points
4 votes
I believe it was
D, the light microscope !
Hope this helps! :)
User WholesomeGhost
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