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Eco 2.1, 2.2 Review
| Term | Definition |
|---|---|
| Producers | produce their own food from sunlight. ex: plants |
| Scavengers | obtain their energy from eating animals that are already dead. ex: vultures |
| Consumers | obtain energy for life by eating other organisms, both plants and animals, includes carnivores, omnivores, scavengers and parasites. |
| Decomposers | bacteria, fungi, algae, worms, and insects that break down dead organisms, releasing nutrients back into the soil. |
| Carnivore | animals that eat other animals only (eat meat). ex: lions |
| Herbivore | animals that eat only plants. ex: squirrels |
| Omnivore | animals that eat both plants and animals. ex: raccoons |
| Energy Pyramid | A model that shows how much energy passes from one level to another in an ecosystem. |
| Food Chain | a chart that shows ONE path that energy travels from one organism to another; it starts with a producer |
| Food Web | A chart that shows MANY paths for energy to travel in an ecosystem; many food chains |
| Primary consumer | the first consumer in a food chain/web |
| Secondary Consumer | eats the primary consumer |
| Tertiary Consumer | eats the secondary consumer |
| The Sun | The original source of energy for most ecosystems. |
| 10% | The amount of energy passed up from one organism to another organism in a food pyramid. |
Created by:
bphelan
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