16mm Filmography
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Limiting Factors

Duration: 33

Creator: CRM/McGraw-Hill Films

Format: 16mm

Color: Color

Description: Discusses various physical and biological factors, which operate to restrict certain animals to certain areas. Deals with such factors as light, water, radiation, salinity, chemicals, oxygen, and temperature. Concludes that knowledge of the above factors enables scientists to produce better plants and control insect pests.

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Indiana University Library Moving Image Archive

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Original permalink · Record added: 2024-04-22 21:31:29