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Ecosystems/Biomes

review of ecosystems and biomes

termdescription
individual single organism in an environment
population individuals of the same kind living in the same environment
community all the populations of organisms living together in an environment
ecosystem a community and its physical environment
habitat place where a population lives
niche each population's role
producers plants that use sunlight to make the food they need from carbon dioxide and water
consumers organisms in an ecosystem that must eat to get the energy they need
food chain shows how the consumers in an ecosystem are connected to one another according to what they eat
decomposers consumers that break down the tissues of dead organisms
food web shows the relationships between many different food chains in a single ecosystem
energy pyramid shows the amount of energy available to pass from one level of a food chain to the next
competition contest among organisms for resources
symbiosis a long-term relationship between different kinds of organisms
instinct behavior that an organisms inherits
learned behaviors behaviors animals learn from their parents
exotic nonnative organisms
extinct the last individual in the population dies
endangered likely to become extinct
threatened likely to become endangered
biome large-scale ecosystem
climate zone region in which yearly patterns of temperature, rainfall, and the amount of sunlight are similar throughout
tropical rain forest found near the equator, always warm and rains nearly every day
deciduous forest trees in this biome shed their leaves each year
grasslands moderate temperatures, moderate rainfall and dominated by tall grasses, "breadbasket" of the world
desert very dry biome with sandy soil
taiga forest of needle-leaved evergreens
tundra rolling plain with low temperatures and long winters
Created by: cwillingham on 2006-04-19



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