Excretory Systems in Animals
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Duration: 600 ft.
Year Published: 1971
Creator: Indiana University
Copyright: Registered 27Oct71 · MP22134 (Jan-Jun 1972) Copyright holder: Indiana University
Complete Record: Illustrates the excretory system of various animals, including the paramecium, amoeba,hydra, planaria, earthworm, grasshopper, crayfish, frog, and DOG. Explains that the paramecium, amoeba, hydra and planaria excrete carbon dioxide and ammonia by diffusion. Uses animated drawings to clarify the function of the nephrons in the kidneys.
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