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Australian Acad. Of Science: Food Waste: Preventing Multi Billion Dollar Problem
The top priority when it comes to food waste is to avoid generating more. Food waste includes all food intended for human consumption that never reaches us, as well as edible food that consumers throw away. As it rots in landfills, food...
Science Struck
Science Struck: Food Chain in the Tundra Region
Describes the characteristics of a tundra biome, how a tundra food chain compares to a tropical food chain, and what the different trophic levels look like.
Annenberg Foundation
Annenberg Learner: The Habitable Planet: Ecosystems: Energy Flow Through
Detailed explanation of the processes by which energy flows through an ecosystem. Scroll down and open Section 3.