Condition of earths atmosphere at a particular time and place
Averafe, year after year conditions of temperature and precipitation in a particular region
Natural situation in which heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases
Cold climate zone where the sun's rays strike earth at a very low angle
Moderate climate zone between the polar zones and the tropics
Warm climate zone that recieves direct or nearly direct sunlight year round
Biological influence on organisms within an ecosystem
Physical, or nonliving, factor that shapes an ecosystem
The area where an organism lives, including the biotic and abiotic factors that affect it
Full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions
Any neccesity of life, such as water, nutrients, light, food, or space
Competitive Exclusion Principle
Ecological rule that states that no two species can occupy the same exact niche in the same habitat at the same time
Interaction in which one organism captures and feeds on another organism
Relationship in which two species live closely together
Symbiotic relationship in which both species benefit from the relationship
Symbiotic relationship in which one member of the association benefits and the other is neither helped nor harmes
Symbiotic relationship in which one organism lives in or on another organism (the host) and consequently harms it
Graduate change in living communities that follows a disturbance
Succession that occurs on surfaces where no soil exists
First species to populate an area during primary succession
Succession following a disturbance that destroys a community without destroying the soil.
Group of ecosystems that have the same climate and dominant communities.
Organism's capacity to grow or thrive when subjected to an unfavorable environmental factor.
Climate within a small area that differs significantly from the climate of the surrounding area.
Dense covering formed by leafy tops of tall rain forest trees.
Layer in a rain forest formed by shorter trees and vines.
Term used to refer to a tree that sheds its leaves during a particular season each year.
Term used to refer to trees that produce seed-bearing cones and have thin leaves shaped like needles.
Material formed from decaying leaves and other organic matter.
Biome in which the winters are cold but summers are mild enough to allow the ground to thaw.
Layer of permanently frozen subsoil in the tundra.
Tiny, free-floating organisms that occur in aquatic environments.
Populatin of algae and other small, photosynthetic organisms found near the surface of the ocean and forming part of plankton.
Tiny animals that form part of a plankton.
Ecosystem in which water either cover the soil or is present at or near the surface of the soil for atleast part of the year.
Wetland formed where river meet the ocean.
Particles of organic material that provide food or organisms at the base of an estuary's food web.
Temperate-zone estuary dominated by salt- tolerant grasses above the low-tide line and by seagrasses under water.
Coastal wetland dominated by mangroves, salt-tolerantwoody plants.
Well-lit upper layer of the oceans.
Permanently dark layer of the oceans below the photic zone.
Prominent horizontal banding of organisms that live in a particular habitat.
Marine zone that extends from the low-tide mark to the end of the continental shelf.
Coastal ocean community named for its dominant organism-kelp, a giant brown alga.
Diverse and productive environment named for the coral animals that make up its primary structure.
Organisms that live attached to or near the ocean floor.