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Amoeba Sisters
Natural Selection
Discover natural selection as a mechanism of evolution with the Amoeba Sisters. This video also uncovers the relationship of natural selection and antibiotic resistance in bacteria and emphasizes biological fitness. Note: This video is...
Khan Academy
Khan Academy: Tonsillopharyngitis Complications, Diagnosis, and Treatment
This video explains the illness strep throat, caused by the streptococcal bacteria. Learn what causes strep throat, diagnosis, complications, and treatment. [10:29]