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Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

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The human body produces and destroys 15 million blood cells every second.

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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

The FDA recognizes 118 routes of administration.

The path of blood flow through the chambers of the left and right side of the heart, including the v The path of blood flow through the chambers of the left and right side of the heart, including the v
negative feedback loop negative feedback loop
George Green. …marooned in dreaming: a path of song and mind, in progress. George Green. …marooned in dreaming: a path of song and mind, in progress.
Homeostasis and negative feedback as related to control of body temperature. Homeostasis and negative feedback as related to control of body temperature.
The schematic of a variable valve timing control circuit, showing that battery power (+) is being ... The schematic of a variable valve timing control circuit, showing that battery power (+) is being ...
The tools needed to diagnose a circuit containing a relay include a digital multimeter (DMM), a ... The tools needed to diagnose a circuit containing a relay include a digital multimeter (DMM), a ...
Video: Replication of DNA and Chromosomes/ How do cells replicate their DNA? (Animation) no Audio

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