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9th Class Science The Fundamental Unit of Life Question Bank 9th CBSE Science The Fundamental Unit of Life

  • question_answer
      Why were the scientists not able to observe most of the cell organelles before 1940?

    Answer:

                      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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