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Which of the following systems in absorbing oxygen and releases carbon dioxide
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The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false
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What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons
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:which nutrient class is used to build body tissues and make enzymes? lipids proteins vitamins carb...
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