| A | B |
|---|
| biome | group of ecosystems with similar climates |
| exotic species | organisms brought from one part of the world into another |
| estuary | ecosystem where fresh water meets salt water |
| carnivore | eats animals |
| photosynthesis | producers use carbon from CO2 to produce other carbon containing molecules |
| ominvores | eat both plants and animals |
| producer | An organism that can make its own food; first organism in food chain |
| herbivore | eats plants |
| freshwater ecosystem | ponds, lakes |
| evaporation | liquid water changes to gas |
| tundra | extremely cold and dry biome |
| marine ecosystem | oceans |
| physical barrier | physcial item that keeps something from dispering |
| scavengers | feed on bodies of dead organisms |
| decomposers | break down wastes and remains of other organisms |
| food web | overlapping food chains |
| nitrogen compounds | form of nitrogen used by plants |
| nodules | where nitrogen fixing bacteia live on the roots of legumes (some plants) |
