deepest, very cold region of the open ocean.
open-ocean zone where sunlight cannot penetrate.
ocean-floor area consisting of sand, silt, and dead organisms.
average weather conditions in a specific area, determined by latitude, elevation, ocean currents, and other factors.
can support cacti and some grasses and animal such as snakes and lizards.
process by which one community replaces another community because of changing abiotic and biotic factors.
unique, transitional ecosystem that supports diverse species and is formed where freshwater and ocean water merge.
biome characterized by fertile soils with a thick cover of grasses. Has moderate rainfall and temperature.
narrow band of shoreline where the ocean and land meet that is alternately submerged and exposed and is home to constantly changing communities.
distance of a point on Earth's surface north or south of the equator. Determines how much sunlight hits the Earth directly.
biotic or abiotic factor that restricts the number, distribution, or reproduction of a population within a community. Biotic factors include predators and competition. Abiotic factors include rainfall, temperature, and natural disasters (earthquakes, etc).
well-lit, open-water area of a lake or pond.
orderly change that occurs in a place where soil remains after a community of organisms has been removed, eg. a tree falls down in forest or a small fire burns out dead grasses (so new grasses can grow). Can occur over a shorter period of time than primary succession.
area of a lake or pond closest to the shore.
biome south of the tundra with dense evergreen forests and long, cold, dry winters.
biome south of the boreal forest characterized by broad-leaved, deciduous trees, well-defined seasons, and average yearly precipitation of 75-150 cm.
group of interacting populations that live in the same geographic area at the same time.
stable, mature ecological community with little change in the composition of species.
distance of a point on Earth's surface north or south of the equator.
open-ocean zone shallow enough for sunlight to penetrate.
tiny marine or freshwater photosynthetic, free-floating autotrophs that serve as a food source for many fish species.
tropical rain forest
contains Earth's most diverse species of plants and animals.
deepest, coldest area of a large lake with little light and limited biodiversity.
tropical seasonal forest
biome characterized by deciduous and evergreen trees, a dry season, and animal species that include monkeys, elephants, and Bengal tigers.
material deposited by water, wind, or glaciers.
biome characterized by grasses and scattered trees, and herd animals such as zebras and antelopes
water-saturated land area that supports aquatic plants.
organism's ability to survive biotic and abiotic factors.
tree-based biome, tend to coniferous/evergreen trees or deciduous trees that lose their leaves in the fall.
specific atmospheric conditions (rainfall and temperature) in one specific place at one specific time