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USA - 1989 - A cell prepares to divide.
USA - 1988 - Indicator dyes are used to make the food vacuoles on a microscopic organism more visible.
Microscopic examination of the sample liquid in search of microorganisms, using a microscope at extreme magnification of about 1000x
CIRCA 1960s - Medical research on malaria is conducted by army doctors at Walter Reed.
United States CIRCA 1960s: Plant cells.
United States CIRCA 1950s: Photograph of red blood cells with some nucleated cells attached to them.
Root tip of Onion and Mitosis cell in the Root tip of Onion under a microscope.

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United States CIRCA 1960s: Dye colored enzymes digesting inside organism. Illustration of enzymes.

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