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The only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart are the
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How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?
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Using the periodic table, determine which material is most likely a good conductor
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Recombinant dna is the merging of dna from unrelated organisms to create new genetic varieties is assembled in the lab from mononucleotides was part of the green revolution of the 1960s is pollination of one plant by another of the same species is cross-pollination of one plant by a different species
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The only vertebrates in which blood flows directly from respiratory organs to body tissues without f...
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