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BiologyGene Expression
Through a look at the devastating Tay-Sachs disease and other hereditary conditions, this module explores...
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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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Earth ScienceThe Rock Cycle
This module addresses the rock cycle, including the historical development of the concept. The relationships...
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