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Educational196725 min640×360

Biological Clocks

National Broadcasting Company, Graphic Curriculum, inc., New York

EducationIndustrial and advertising

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About

Produced in cooperation with the National Education Association, the National Science Teachers Association, the American Library Association, and the American Institute of Biological Sciences

Investigates how animals are able to perform certain activities at specific times. Presents experiments to discover whether biological clocks are responsive to internal or external forces

Human-made No record of this work says a model made it. What this means.

Archive
Internet Archive, in Educational films
Licence or status
The Internet Archive states none for this item.
Rights statement
Produced in cooperation with the National Education Association, the National Science Teachers Association, the American Library Association, and the American Institute of Biological Sciences
Credit
National Broadcasting Company, Graphic Curriculum, inc., New York
Language
Zxx
Who can watch
The archive gives no rating. Invisible Network shows it to Kids profiles and older, judged from its collection and subjects. How films are placed