Excretory Systems in Animals

Duration: 600 ft.

Year Published: 1971

Creator: 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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