which of the following led to the discovery of cells


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Which of the following led to the discovery of cells?

a. electricity
b. computers
c. microscopes
d. calculators

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How do gymnosperms and angiosperms differ? How do they compare? What are the benefits of each? I will report for IDK or other not cool stuff ;(
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How do gymnosperms and angiosperms differ? How do they compare? What are the benefits of each? I will report for IDK ;(
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