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Chapter 20 Vocab

Vocabulary

TermDefinition
ecosystem is all the livings things and nonliving things in a given area.
Biotic factors are the living things and nonliving things in a ecosystem
Abiotic factors are the nonliving things in an ecosystem.
climate describes average weather conditions in an area over time.
atmosphere is the layer of gases that surrounds earth
condensation is the process during which water vapor changes into liquid water.
evaporation is the process during which liquid water changes into liquid water.
precipitation water that falls from clouds to earth's surface.
nitrogen fixation the process that changes atmospheric nitrogen into nitrogen compounds that are usable by living things.
photosynthesis is a series of chemical reactions that convert light energy,water,and carbon dioxide into the food energy molecule glucose and give off oxygen.
chemosynthesis is the process during which producers use chemical energy in matter rather than light energy and make food.
food chain is a model that shows how energy flows in an ecosystem through feeding relationships.
food web to show how food chains in a community are interconnected.
energy pyramid to show the amounts of energy available in each step of a food chain
Created by: kailanih
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