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Process of ScienceTheories, Hypotheses, and Laws
Theories are not based on one scientist's work but on an accumulation of evidence and...
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BiologyBiodiversity I
Since the time of hunter-gatherers, human beings have been aware of how the wellbeing of...
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Scientists and ResearchPercy Lavon Julian
The module traces the life and career of organic chemist Percy Julian, who developed a...
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