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ECOLOGY Periods: 8-9 - WPMU DEV

The arrows in a food chain represent the flow of food energy. 2. A food chain starts with a primary source (Ex: sun). 3. Organisms that make their own food are called autotrophs or primary producers. 4. Organisms that eat plants are called primary consumers or herbivores. 5. An animal with no natural enemies is a top predator. Food Chain Worksheet