Description: WALKS UP TO SIGN. USES POINTER. AMOEBA MOVING AROUND. CROSS SECTION OF A HUMAN BODY. MICROSCOPIC ONE-CELLED ORGANISMS. MAN HOLDS WEIRD GEOMETRIC SHAPE. LARGE MODELS OF CELL UNITS. MAN HITS OSTRICH EGG WITH SMALL HAMMER & BREAKS IT OPEN. HUGE EGG YOLK. MAN AT BLACKBOARD. WATER SWIRLING AROUND LIKE A TORNADO. WHIRLPOOL
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