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Unit 7: Organisms and Environments

Name: _______________________________

Date: ____________________ Period: _____
Horizontales
First organisms to live in an area
A large naturally occurring community of plants and animals occupying a major habitat
North American Prairie, grasses are dominant, hot summers/cold winters
Ability to maintain ecological processes over long periods of time
Variety of organisms in an ecosystem
Broadleaf trees, Northeastern US, moderate precipatation
A small or specialized habitat within a larger habitat
Dominant community of plants and animals that come to live in an area
A community of living organisms and their nonliving environment
Related to or resulting from living things
A process started by an event that reduces an already established ecosystem to a small population of species
Verticales
Derived from non-living organisms
A process that develops a biotic community in a previously uninhabited and barren habitat with little or no soil
Soil is thin, acidic, and nutrient poor found in Canada/Northern Europe & Asia
A condition or resource that keeps a population at a certain size
The changing sequence of communities that live in an ecosystem during a given time period
Near the Equator, warm throughout the year, receives more rain than any other biome
The position or role a species has in an ecosystem
Artic/high mountain regions with low average temperatures
A place where an organism lives within an ecosystem
Very dry, rocky, sandy/ hot during the day, cold during the night