Food chain - A sequence of who eats whom , Photosynthesis - How palnts make their food, Bacteria and fungi - Example of decomposers, Heterotrophs  - Humans and animals are examples of  this, Sun - The source energy for a food chain, Herbivores - Only eats plants, Omnivores - Consumers eat both plants and animals, Primary producers - They are at the base of the food chain,

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