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What is the best definition of an element? a. an element is a substance that cannot be broken down. b. an element is a positively charged particle. c. an element is a substance only found in stars.
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Some substances but not other can cross the (blank) membrane of a cell
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Where does the citric acid cycle take place in eukaryotic cellular respiration?
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What is the best definition of an element? a. an element is a substance that cannot be broken down....
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