فيلم Plankton to Fish: A Food Cycle 1974 مترجم اون لاين
التصنيففيلم
السنة1974
المدة10 د
الأنواعوثائقي
القصة
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.
