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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Structure of a typical plant cell Structure of a typical plant cell
A typical accelerator pedal position (APP) sensor uses three different sensors in one package with ... A typical accelerator pedal position (APP) sensor uses three different sensors in one package with ...
A typical port fuel-injection system squirts fuel into the low pressure (vacuum) of the intake ... A typical port fuel-injection system squirts fuel into the low pressure (vacuum) of the intake ...
Western blot. In the first step, (1) a polyacrylamide gel electrophoresis is performed to separate ... Western blot. In the first step, (1) a polyacrylamide gel electrophoresis is performed to separate ...
DNA sequence variation in the human genome DNA sequence variation in the human genome
Comparison of an Amino Acid Sequence Comparison of an Amino Acid Sequence
Video: Phases of mitosis

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