| A | B |
|---|
| ECOSYSTEM | organisms in a specific area and their physical environment |
| BIOMES | large regions characterized by their climates and their communities |
| BIOTIC FACTORS | living factors |
| ABIOTIC FACTORS | nonliving factors |
| ADAPTATIONS | structures and behaviors that enable organisms to survive in their ecosystems |
 | plants respond to light by growing toward it |
| EUTROPHICATION | adding of excess nutrients |
| SOME MAJOR BIOMES | desert, forest, grassland, and tundra |
 | biome with cold climate, short growing season, ground frozen all year |
 | biome with extemely dry climate; hot days, cold nights |
 | biome with big open spaces, few trees, good fertile soil |
 | biome with most rain, very wet, lush, huge diversity of plants & animals |
 | biome with four seasons; animals and plants adapt to seasons |
 | cold forest biome; evergreens flourish but too cold for diverse plantlife |
| HIBERNATION | animals respond to cold with period of lowered metabolism |
| DORMANCY | Plants response to adverse winter weather- lowered metabolism |
