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Chapter 2 lessons 1 and 2

Terms in this set (14)

Producer
An organism that can make its own food.
Consumer
An organism that obtains energy by feeding on other organisms
Herbivore
A consumer that eats only plants.
Carnivore
A consumer that eats only animals.
Omnivore
A consumer that eats both plants and animals
scavenger
A carnivore that feeds on the bodies of dead organisms
Decomposer
An organism that breaks down wastes and dead organisms
food chain
A series of events in which one organism eats another and obtains energy.
Food web
Consists of many overlapping food chains in an ecosystem
energy pyramid
A diagram that shows the amount of energy that moves from one feeding level to another in a food web
Evaporation
The process by which molecules of liquid water absorb energy and change to a gas
Condensation
the process by which a gas changes to a liquid
Precipitation
Any form of water that falls from clouds and reaches Earth's surface.
nitrogen fixation
The process of changing free nitrogen gas into a usable form
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