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8th Book2 Chap 2

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 The pattern of overlapping food chains in an ecosystem.
energy pyramid A diagram that shows the amount of energy that moves from one feeding level to another.
water cycle The continuous process by which water moves from Earth's surface to the atmosphere and back.
evaporation The process by which molecules of a liquid absorbs energy and change to a gas.
condensation The process by which a gas changes to a liquid.
precipitation Rain, snow, sleet or hail.
nitrogen fixation The process of changing free nitrogen gas into a usable form.
biogeography The study of where organisms live
continental drift The very slow motion of the continents.
exotic species Species that are carried to a new location by people.
climate The typical weather pattern in an area over a long period of time.
dispersal The movement of organisms from one place to another.
Created by: jamimurray