5.L.2.1 Ecosystems

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terrestrial
(adj.) relating to the land (Elephants are terrestrial animals.)
niche
How an organism makes its living and interacts with the biotic and abiotic factors in its habitat
biotic
Describes living factors in the environment.
abiotic
A term that describes a nonliving factor in an ecosystem.
biome
A group of ecosystems with similar climates and organisms
climate
Overall weather in an area over a long period of time
habitat
An area that provides an organism with its basic needs for survival.
grasslands
Prairies, steppes, pampas, veldts; near the equator, characterized by treeless areas and tall grasses.
taiga
a terrestrial habitat zone that is characterized by large tracts of coniferous forests, long and cold winters, and short summers
tundra
An extremely cold, dry biome climate region characterized by short, cool summers and bitterly cold winters.
desert
An area that receives less than 25 cm of precipitation a year
deciduous forest
Biome with four seasons, trees that lose their leaves
tropical rain forest
Biome near the equator with warm temperatures, wet weather, and lush plant growth
aquatic
A term that describes an organism associated with a water environment.
salt marshes
temperate zones, estuaries dominated by salt tolerant grasses above the low tide line and by sea grasses under the water.
ocean
A large body of salt water
lake
a large body of water surrounded by land
pond
a body of water smaller than a lake, sometimes made by man
plankton
tiny, free-floating organisms that occur in aquatic environments
ecosystem
A system formed by the interaction of a community of organisms with their physical environment
Estuary
A habitat in which the fresh water of a river meets the salt water of the ocean.
biodiversity
the variety of life in the world or in a particular habitat or ecosystem
population
all the organisms of a species living in the same area
community
all the populations living in an area
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