| A | B |
|---|
| population | same organisms living in an ecosystem |
| producers | oragnisms that make their own food |
| mutualism | both organisms are helped |
| plants | producers |
| niche | function or job in an ecosystem |
| ecosystem | relationships between organisms & environment |
| food web | food chains interacting with each other |
| carrying capacity | size that a population can grow to |
| habitat | place where an organism lives |
| tundra | small plants, cold temps, permafrost |
| estuary | freshwater flows into an ocean |
| taiga | warmer temps & more rainfall than tundra |
| freshwater biome | lakes, ponds, rivers, and streams |
| temperate forests | warmer & wetter than taiga |
| saltwater biome | oceans |
| tropical rain forests | greatest # of different organisms living together |
| deserts | driest biome |
| temperate grassland | deep layer of soil rich in nutrients |
| savanna | soil not as deep or rich as temperate grassland |
| ecologist | studies how living things relate |
| succession | gradual change of populations |
| symbiosis | one organism benefits from another |
| adaptation | characteristic that helps with survival |
| community | all living things in one ecosystem |
| decomposer | breaks down nutrients from dead organisms |
