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33 Cards in this Set
- Front
- Back
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Producer
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an organism that can make its own food
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Consumer
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an organism that obtains energy by feeding on other organisms
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Herbivore
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a consumer that only eats plants
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Carnivore
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a consumer that only eats meat
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Omnivore
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an organism that eats plats and animals
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Scavenger
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a carnivore that feeds on dead bodies of other organisms
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Decomposer
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an organism that breaks down chemicals from wasted and dead organisms and returns important materials to soil
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Food Chain
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a series of events in which 1 organism eats another and obtains energy
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Food Web
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pattern of overlapping food chains in an ecosystem
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Energy Pyramid
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diagram that shows the amount of energy that moves from one feeding level to another in a food web
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Water Cycle
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the continuous process by which water moves from the earth's surface to the atmosphere and back
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Evaporation
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the process by which molecules of a liquid absorb energy and change to a gas
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Condensation
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process by which a gas changes into a liquid
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Precipitation
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snow, rain, sleet, hail
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Nitrogen Fixation
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the process of changing free nitrogen gas into a usable form
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Biogeography
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study of where organisms live
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Continental Drift
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very slow motion of continents
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Dispersal
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movement of organisms from 1 place to another
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Exotic Species
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species that are carried to another location by people
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Climate
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typical weather pattern in an area over a long period of time
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Biome
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A group of land ecosystems with similar climates and organisms
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Canopy
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a leafy roof formed by tall trees
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Understory
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a layer of shorter plants that grow in the shade of a forest canopy
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Desert
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an area that receives less than 25 centimeters of rain per year
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Grassland
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an area populated by grasses and other nonwoody plants. 25-75 cen. of rain per year.
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Savanna
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a grassland close to the equator that has 120 cen. of rain per year
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Deciduous Tree
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a tree that sheds its leaves and grows new ones every year
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Coniferous Tree
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a tree that produces its seeds in cones and that has needle shaped leaves
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Tundra
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an extremely cold, dry biome
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Permafrost
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soil that is frozen all year
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Estuary
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a habitat in which the fresh water of a river meets the salt water in the ocean
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Intertidal Zone
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the area between the highest high-tide line and the lowest low-tide line
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Neritic Zone
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the region of shallow water over the continental shelf
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