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Scientists and ResearchEllen Ochoa
Although she was rejected by the space program initially, Ellen Ochoa went on to become...
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ChemistryThe Periodic Table of Elements V
The periodic table allows us to easily view the 118 known chemical elements according to...
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BiologyTaxonomy I
Modern taxonomy officially began in 1758 with Systema Naturae, the classic work by Carolus Linnaeus....
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