Plant-Animal Communiteis: The Changing Balance of Nature

Duration: 11

Year Published: 1963

Format: 16mm

Color: B&W

Description: Uses various plants and animals examples to illustrate how such constantly changing factors as the rate of reproduction of a species, its available food supply, and the number of its natural enemies largely determine the survival of a species within a biome. Shows some of the factors, including man, which may upset the balance of a community. collaborator, John Urban.

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Indiana University Library Moving Image Archive

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