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| substances that cannot be broken down into simpler substances (made of identical atoms) |
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| smallest particle of matter |
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| lets certain materials in/ out ("semi permerable") |
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| molecules move from areeas where there are few |
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| requires energy ""faciltated diffusion" helper proteins- molecules that are too large to go through on own |
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| release of waste in a cell |
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| total amount of energy used |
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| organism that can produce their own food (plant) |
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| an organism that relys on producers (humans) |
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| releases energy when little/ no O2 is available using only glucose |
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