*30 points question* (wrong anwers will be reported and banned)
5. Why were the scientist not able to observe most of cell organelles before 1940?
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Before 1940, scientists could view the cell only under a light microscope. The invention of the electron microscope in 1940 enabled the scientists to observe the cell in greater detail.
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Because tb tk electron microscope ki discovery nhii ho paayi thi..
Right nn..????
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