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Biology 19 Online
OpenStudy (anonymous):

Which microscope did Anton van Leeuwenhoek use to observe single-celled organisms? a. simple microscope b. compound light microscope c. electron microscope d. tunneling microscope

OpenStudy (tmak11):

i think its a but im not entirely sure..its been to long for me to remember

OpenStudy (anonymous):

Ok thank you for your help

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