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14 terms

Ecology Chapter 2

STUDY
PLAY
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