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2
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little holes on the underside of leaves which allow gases to pass
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3
|
an inter related network of food chains in an ecosystem
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5
|
green substance in the leaves of plants that traps light energy used in photosynthesis
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6
|
an area of living and non living things that form an environment
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7
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the top branches of leaves and trees in a forest
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8
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the non living wood making up most of a tree stem which strengthens the stem
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9
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trees and plants that lose their leaves every autumn
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11
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a plant eating organism
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12
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tiny tubes in a plant's trunk that carry water & minerals upward from the roots
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13
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non living things of an environment
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14
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living components of an environment
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16
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the top of a tree which forms the canopy
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17
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visible outer tree covering that protects the inside
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