ล็อกอิน
1970s: Amoebas and other aquatic organisms magnified under a microscopes. Boy in lab looks through eyepiece of microscope, removes his eye and blinks. Drop of water falls from pipette.
1970s: Amoebas and other aquatic organisms magnified under a microscopes. Amoebas from pond water move and swim.
United States CIRCA 1970s: Microscopic view of zygotes. Clumps of spirogyra on surface of pond water. Person picks some up with hand.
1970s: Amoebas and other aquatic organisms magnified under a microscopes. Amoebas from pond water move and swim.
1960s: Microscopic organism with fluid moving inside. Organism with another organism spinning inside.
1950s: Microscopic view of egg cells on algae cell chain. New cell travels to egg cell, fertilization occurs.
1970s: Amoebas and other aquatic organisms magnified under a microscopes. Boy in lab looks under microscope. Boy rubs his eyes. Amoebas with long flagella from pond water move and swim.

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1970s: Amoebas and other organisms magnified under a microscope from pond water move and swim.

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