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What technological advancement was necessary before scientists could begin to observe cells? A. invention of the microscope B. invention of the balance C. invention of the telescope D. invention of the thermometer

User Chans
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2 Answers

3 votes

the correct answer would be

A) invention of the microscope

User Windyjonas
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4 votes

A : microscope will be your answer

User Yangmillstheory
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