| A | B |
| organism | an individual living thing |
| population | all of the organisms of one species in one place at one time |
| community | all of the living things in one place at one time |
| ecosystem | all of the living things in one place at one time and all of the non-living things with which the interact |
| biome | a large region that can be defined by its climate, dominant soil type, and particular plants and animals |
| biosphere | all life on Earth |
| lithosphere | Earth's rocks and soil |
| atmosphere | blanket of air surrounding the Earht |
| hydrosphere | all of Earth's waters |
| anthroposphere | all things made by humans on Earth |
| consumer | organism that eats other organisms |
| producer | organism that makes its own food |
| carnivore | meat eater |
| herbivore | plant eater |
| omnivore | animal that eats plants and meat |
| desert climate, soil, plants | biome with hot dry climate, sandy soil, and succulent plants |
| deciduous forest climate, soil, plants | biome with temperate climate, rich soil, trees that loose their leaves in winter |
| coniferous forest climate, soil, plants | biome with cold climate, shallow rocky soil, trees with cones and needles |
| tropical rain forest climate, soil, plants and animals | biome with warm/hot wet climate, poor soil, lots of species of plants and animals |
| grassland climate, soil, plants | biome with dryer climate than forests, rich fertile soil, grasses |
| tundra climate, soil, plants and animals | cold climate with frozen soil; mosses, shrubs, grass; lots of migratory animals in spring/summer |