Flashcards in Chapter #18 Deck (29):
evolutionary adaptations that enable individual organisms to survive in their environment.
the ocean begins at the low tide mark and includes the entire oceanic water column
a thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions.
the upper layer of a body of water delineated by the depth to which enough sunlight can penetrate to permit photosynthesis.
the aggregate of plants and plantlike organisms in plankton.
Either of the regions around a planet's poles that are permanently covered with ice or other frozen material. Also called polar ice cap.
a particular section, group, or type of people or animals living in an area or country.
a sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment.
a grassy plain in tropical and subtropical regions, with few trees.
the ability to continue a defined behavior indefinitely.
the sometimes swampy coniferous forest of high northern latitudes, especially that between the tundra and steppes of Siberia and North America.
Hot and humid; torrid.
a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen.
land consisting of marshes or swamps; saturated land.
plankton consisting of small animals and the immature stages of larger animals.
a terrestrial biome characterized by conifers, cone-bearing evergreen trees
tropical marine biome characterized by the hard skeletal structures secreted primarily by the resident cnidarians
a terrestrial biome characterized by low and unpredictable rainfall(less than 30 cm per year)
the scientific study of the interactions between organisms and their environments
all the organisms in a given area, along with the abiotic factors with which they interact, a biological community and its physical environment
the study of energy flow and the cycling chemicals among the various biotic and abiotic factors in an ecosystem
the area where a freshwater stream or river merges with seawater
any of the gases in the atmosphere that absorb heat radiation, including CO2, methane, water vapor, and synthetic chlorofluorocarbons
the warming of the atmosphere caused by CO2, CH4, and other gases that absorb heat radiation and slow its escape from Earth's surface
a place where an organism lives, a specific environment in which an organism lives
a shallow zone where the waters of an estuary or ocean meet land
coniferous forests of coastal North America supported by warm, moist air from the Pacific Ocean
latitudes between the tropics and the Arctic Circle in the North and the Antarctic Circle in the south, regions with milder climates than the tropics or polar regions