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Which is the most ancient arthropod lineage still in existence?
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Dermal tissue in plants stores 1.extra food 2.transports water and nutrients 3.transports waste materials 4.is similar to epithelial cells in animals
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Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above
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The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.
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Which is the most ancient arthropod lineage still in existence?...
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