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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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Medication errors are three times higher among children and infants than with adults.

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Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Structure of phospholipids Structure of phospholipids
Object and Word Recognition After Midsegments of Lines Have Been Eliminated Object and Word Recognition After Midsegments of Lines Have Been Eliminated
The two major forms of polynucleotide secondary structure The two major forms of polynucleotide secondary structure
Differential Equation Word Problem Differential Equation Word Problem
Functional divisions of vertebrate nervous systems Functional divisions of vertebrate nervous systems
Typical leaf structure of eudicots (left) and monocots (right). Typical leaf structure of eudicots (left) and monocots (right).
Video: Gastroesophageal Reflux Disease (GERD)

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