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Flashcards / Science / Biology / glencoe biology - chapter 3 communities, biomes, and ecosystems

glencoe biology - chapter 3 communities, biomes, and ecosystems

glencoe biology - chapter 3 communities, biomes, and ecosystems

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School: Ulster County Community College
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Name: glencoe biology - chapter 3 communities, biomes, and ecosystems
Uploaded: 04/21/2016
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abyssal zone

deepest, very cold region of the open ocean.

aphotic zone

open-ocean zone where sunlight cannot penetrate.

benthic zone

ocean-floor area consisting of sand, silt, and dead organisms.

climate

average weather conditions in a specific area, determined by latitude, elevation, ocean currents, and other factors.

desert

can support cacti and some grasses and animal such as snakes and lizards.

ecological succession

process by which one community replaces another community because of changing abiotic and biotic factors.

estuary

unique, transitional ecosystem that supports diverse species and is formed where freshwater and ocean water merge.

grassland

biome characterized by fertile soils with a thick cover of grasses. Has moderate rainfall and temperature.

Intertidal zone

narrow band of shoreline where the ocean and land meet that is alternately submerged and exposed and is home to constantly changing communities.

latitude

distance of a point on Earth's surface north or south of the equator. Determines how much sunlight hits the Earth directly.

limiting factor

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).

limnetic zone

well-lit, open-water area of a lake or pond.

secondary succession

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.

littoral zone

area of a lake or pond closest to the shore.

boreal forest

biome south of the tundra with dense evergreen forests and long, cold, dry winters.

temperate forest

biome south of the boreal forest characterized by broad-leaved, deciduous trees, well-defined seasons, and average yearly precipitation of 75-150 cm.

community

group of interacting populations that live in the same geographic area at the same time.

climax community

stable, mature ecological community with little change in the composition of species.

latitude

distance of a point on Earth's surface north or south of the equator.

photic zone

open-ocean zone shallow enough for sunlight to penetrate.

plankton

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.

profundal zone

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.

sediment

material deposited by water, wind, or glaciers.

tropical savanna

biome characterized by grasses and scattered trees, and herd animals such as zebras and antelopes

wetlands

water-saturated land area that supports aquatic plants.

tolerance

organism's ability to survive biotic and abiotic factors.

woodland

tree-based biome, tend to coniferous/evergreen trees or deciduous trees that lose their leaves in the fall.

weather

specific atmospheric conditions (rainfall and temperature) in one specific place at one specific time