Ecology Chapter 2

14 terms by 17ebrown 

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abiotic

nonliving physical features of the enviorment

atmosphere

the air that surrounds the earth

biotic

the features of a enviorment that are alive or once alive

soil

a mixture of minreal and rock particles

climate

the area's average weather conditions

evaporation

when liquid water changes into water vapor and enters the atmosphere

condensation

the process of changing gas to a liquid

water cycle

a model that describes how water moves from the surface of earth to the atmosphere

nitrogen fixation

types of soil bacteria can form nitrogen compunds plants need

nitrogen cycle

the transfer of nitrogen from the atmosphere, to the soil, to living organisms, and back to the atmosphere

carbon cycle

describes how carbon molecules move between the living and nonliving world

chemosynthesis

the production of energy-rich nutrient molecules fomr chemicals

food web

model that shows all the possible feeding relationships among organisms

energy pyramind

the amount of energy available at each feeding level in a ecosystem

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