Plankton to Fish: A Food Cycle
en
PG-13
January 1974
Documentary
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.
Plankton to Fish: A Food Cycle
January 1974
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.