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Math in ScienceScientific Notation
The blue whale weighs approximately 190,000 kilograms, while a plankton weighs just 0.5 milligrams—a difference...
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BiologyDNA I
This module is the first in a series that discusses the discovery, structure, and function...
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BiologyCell Division I
Cell division is an enormously complex process that must go on millions and millions of...
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