

Plankton to Fish: A Food Cycle
1974-01-01 · 10 min · Not rated
Features experiments in an aquarium, illustrating the food chain as a continuous cycle. Shows how each type of living thing depends on the other, when the cycle is properly balanced.
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- Directors
- Unavailable
- Production companies
- Coronet Films
- Countries
- United States of America
- Status
- Released
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