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BiologyPaleontology and the Fossil Record
Paleontologists study fossils to understand ancient organisms. While fossils might look simple enough, they provide...
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ChemistryChemical Equations
Chemical equations are an efficient way to describe chemical reactions. This module explains the shorthand...
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BiologyBiodiversity II
According to recent estimates, humans have significantly altered roughly 75% of land-based environments, resulting in...
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