Terms : Hide Images
| 282902949 | abiotic components | Nonliving chemical and physical factors in the environment. | |
| 282902950 | aphotic zone | The part of the ocean where light does not penetrate sufficiently for photosynthesis to occur | |
| 282902951 | benthic zone | The bottom surfaces of aquatic environments. | |
| 282902952 | biome | The world's major ecosystems, classified by vegetation and characterized by adaptations of organisms | |
| 282902953 | biosphere | The entire portion of Earth inhabited by life | |
| 282902954 | chaparral | A scrubland biome of dense, spiny evergreen shrubs | |
| 282902955 | community | All the organisms that inhabit a particular area | |
| 282902956 | coniferous forest | Dominated by cone-bearing evergreen trees such as spruce, pine, fir, and hemlock | |
| 282902957 | continental shelves | The submerged parts of continents | |
| 282902958 | coral reefs | Warm water, tropical, ecosystems dominated by the hard skeletal structures secreted by cnidarians | |
| 282902959 | desert | A biome characterized by sparse rainfall (less than 30 centimeters per year). | |
| 282902960 | desertification | The conversion of semi-arid regions to deserts | |
| 282902961 | doldrums | Calm or very light winds at the equator | |
| 282902962 | ecosystem | All the organisms in a given area as well as the abiotic factors with which they interact | |
| 282902963 | estuary | The area where a freshwater stream or river merges with the ocean | |
| 282902964 | habitats | environmental situations in which organisms live | |
| 282902965 | intertidal zone | The shallow zone of the ocean where land meets water | |
| 282902966 | pelagic zone | The area of the ocean past the continental shelf, with areas of open water often reaching to very great depths | |
| 282902967 | permafrost | A permanently frozen stratum below the arctic tundra | |
| 282902968 | photic zone | The narrow top slice of the ocean, where light permeates sufficiently for photosynthesis to occur | |
| 282902969 | phytoplankton | Algae and photosynthetic bacteria that drift passively in the pelagic zone of an aquatic environment. | |
| 282902970 | population | A group of individuals of one species that live in a particular geographic area | |
| 282902971 | savanna | A tropical grassland biome with scattered individual trees, large herbivores | |
| 282902972 | taiga | The coniferous or boreal forest biome | |
| 282902973 | temperate deciduous forest | A biome in midlatitude regions where there is sufficient moisture to support the growth of large deciduous trees | |
| 282902974 | temperate grassland | Grassland regions maintained by seasonal drought, occasional fires, and grazing by large mammals. | |
| 282902975 | temperate zones | Region whose latitude is between the tropics and the Arctic Circle or the Antarctic Circle | |
| 282902976 | trade winds | The movement of air in the tropics from approximately 23.5 degrees north and south towards the equator | |
| 282902977 | tropical rain forest | The most complex of all communities, located near the equator where rainfall is abundant | |
| 282902978 | tundra | A biome at the extreme limits of plant growth; at the northernmost limits | |
| 282902979 | wetland | An ecosystem intermediate between an aquatic one and a terrestrial one | |
| 282902980 | zooplankton | Animals that drift in the pelagic zone of an aquatic environment |
