Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
Did you know?
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.
Did you know?
Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
A typical battery-powered 3/8 inch drive impact wrench.
Typical hookup of a starting and charging tester.
A typical port fuel-injected system showing a vacuum-controlled fuel-pressure regulator.
Typical Night’s Sleep for a Young Adult
Portrait of Typical 12-year-old Boy and Girl, 1981 and 2007-2009
Life cycle of a typical flowering plant.