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The tubes transporting minerals and water upward are called ?
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Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
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What could happen if two base pairs on a strand of dna or switched
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Unlike photosynthesis cellular respiration occurs in?...
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