Science is experimenting

Science is experimenting

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Motion Pictures Digestion in Our Bodies. (Cor.) 11 min. 16 mm. Color. X-ray motion pictures and clearly labeled diagrams show just what happens to food as it passes through the digestive system. The functions of the organs of digestion areanbsp;...

Title:Science is experimenting
Author:Glenn Orlando Blough, Scott, Foresman and Company
Publisher: - 1968


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