producers - Autotrophs that are the foundation of food webs; trophic level 1, primary consumers - organisms that eat producers for energy; herbivores, secondary consumers - eat primary consumers for energy; are carnivores or omnivores, tertiary consumers - obtain their energy by eating primary and secondary consumers; carnivores or omnivores, heterotrophs - they get their energy by consuming (eating) another organisms, trophic level - a level or a position in a food chain, a food web, or an energy pyramid, energy pyramid - a graphical representation that illustrates the flow of energy through different trophic levels in an ecosystem from the most energy (producers) to the least (tertiary consumers), 10% rule - only 10% of energy is passed on from one trophic level to the next in an ecosystem, autotrophs - make their own food by transforming light energy from the sun, carbon dioxide, and water; photosynthesis, nutrients - a substance that provides nourishment essential for growth and the maintenance of life; minerals, water, oxygen, carbon dioxide, nitrogen, etc, biosphere - the part of the Earth that can support life; includes all living things and the places they are found,

7th Grade Energy Flow

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