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2
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an organism that makes its own food
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3
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a final and stable community
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4
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each step in the transfer of energy through a food chain or web in an ecosystem
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5
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a type of succession that occurs on a surface where no ecosystem excisted before
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6
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a gradual process of change and the replacement of the types of species in a community
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7
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a sequence in which energy is transferred from one organism to the next as each organism eats another organism
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8
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the first organisms to colonize any newly avaailable area time
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9
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organisms that get their energy by eating other organisms
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11
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plants use sun to make sugar molecules
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12
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a process by which carbon is cycled between the atmosphere, land, water, and organisms
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13
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consumers who get their food by breaking down dead organisms
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14
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the process of breaking down food to yield energy
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15
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the more common type of succession, occurs on a surface where an ecosystem has previously existed
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16
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a process in which nitrogen is cycled between the atmoshphere, bacteria, and other organisms
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