| A | B |
|---|
| ecosystem | all living and nonliving things in an area |
| population | a group of organisms of one species |
| community | a group of populations |
| niche | an organism's job |
| biome | a large region with the same climate and similar organisms |
| Land Biomes | Tropical Rain Forest, Grasslands |
| Water Biomes | Coral Reef, Wetlands |
| Help-Help | Cattle & Digestive Bacteria |
| Help-Harm | Cattle & Tapeworm |
| Help-Neither | Egret & Water Buffalo |
| Food Chains and Food Webs | Show movement of energy through an ecosystem |
| Where the most energy is found in an energy pyramid | First Layer |
| Producers | Make own food |
| Consumers | Must eat other organisms |
| Omnivores | Eat Meat and Plants |
| Herbivores | Eat Plants |
| Decomposers | Eat Dead Material |
| Carnivores | Eat Meat |
| Preditors | Eat and Hunt their Meat |
| Prey | Eaten by Preditors |
| Turns Nitrogen Gas to Compounds | Lightning, Bacteria, and some Plants |
| Gives off CO2 | Volcanoes, animals, & burning things |
| Make O2 | Plants & Plankton |
