| A | B |
|---|
| abiotic | non-living things |
| biotic | living things |
| ecosystem | made up of living and non living things in an environment |
| soil | complex mixture of organic matter and rock particles |
| fossil fuels | non reusable energy source |
| light | necessary for plants to make food |
| system | series of events that occurs over and over again |
| producer | organism that converts heat or light energy into chemical energy |
| food web | made up of many overlapping food chains |
| decomposer | organism that breaks down dead plants and animals into simpler compounds |
| food chain | shows one set of feeding relationships between a producer and several consumers |
| energy pyramid | shows how energy is lost as it is transferred up the food chain |
| consumer | organism that gets its energy by eating plants or animals |
| estuaries | where river meets the ocean |
| Desert | Can be hot or cold but always dry |
| Coniferous Trees | Evergreens; can produce food all year |
| Deciduous trees | drop their leaves before winter |
| Tropical Forest | biome with the most rainfall |
| Tundra | permafrost and colder than Taiga |
| Marine Biomes | coastal, open, deep oceans |
| Sunlight | best source of energy on earth |
