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LS5Grimes
Learn about Energy Pyramids, Food Webs, and Food Chains!
| Term | Definition |
|---|---|
| Food Web | A model that shows all the possible feeding relationships among the organisms in a community. |
| Food Chain | A way of showing how matter and energy pass from one organism to another in an ecosystem. |
| Energy Pyramid | Shows the amount of energy available at each feeding level in an ecosystem. Gets SMALLER towards the TOP. |
| Trophic Levels | Steps in a food chain that shows how energy is passed from one living thing to another, usually starting with producers at the bottom, consumers in the middle, and at the top Predators. |
| What percent of energy is moved to each trophic level? | 10% |
| What are the 4 trophic levels in an energy pyramid, from bottom to top? | 1) Producers (autotrophs), 2) herbivore, 3) omnivore, 4) carnivore (all heterotrophs) |
| How is energy transferred to each trophic level? | By consuming plants or animals. |
| How is most energy lost? | Through heat. |
| What trophic level would an eagle be in, in an energy pyramid? 1, 3, or 4? | Trophic level 4, where carnivores are located. |
| What trophic level would a mushroom be in, in an energy pyramid? | Not necessarily a level (depending on the energy pyramid you view), as decomposers can be on any level. |
| What trophic level would grass be in, in an energy pyramid? 1, 3, or 5? | Trophic level 1. Grass is a producer, or autotroph. |
| What trophic level has the MOST energy? | Trophic level 1 |
| Energy enters an ecosystem through the process of _____. The amount of energy available to each level of the food Web _____ as it goes up the energy pyramid. | Photosynthesis, decreases |
| Producers | Organisms that make their own food (autotrophs). They convert light energy into chemical energy to make their own food. |
| Consumers | Organisms that do NOT make their own food (heterotrophs - animals). |
| Herbivores | Animals that consume producers and belong on the second step of an energy pyramid. |
| Carnivores | Animals that consume only other animals and belong on the fourth or higher step of the energy pyramid. |
| Omnivores | Animals that consume either plants or animals and belong to the third step of an energy pyramid. |
| Decomposers | Organisms that break down and recycle materials in the ecosystem. |
Created by:
Miss_Michaela
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