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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

The gill-withdrawal reflex in the sea slug. The gill-withdrawal reflex in the sea slug.
negative feedback negative feedback
Gram negative N. gonorrhoeae. Gram negative N. gonorrhoeae.
When the exhaust is rich, the PCM applies a negative current into the pump cell. When the exhaust is rich, the PCM applies a negative current into the pump cell.
The relation between drug tolerance and withdrawal effects. The same adaptive neurophysiological ... The relation between drug tolerance and withdrawal effects. The same adaptive neurophysiological ...
Negative and positive feedback loops Negative and positive feedback loops
Video: Cell mediated immune response to a viral infection Animation

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