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Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Feedback control of the adrenal cortex Feedback control of the adrenal cortex
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Control of Homeostasis: Negative Feedback Control of Homeostasis: Negative Feedback
Find the voltage, current and power for each resistor in the circuit below Find the voltage, current and power for each resistor in the circuit below
Phrenology model showing areas of the head overlaying brain regions that control different traits. I Phrenology model showing areas of the head overlaying brain regions that control different traits. I
Four bacterial amino acid operons with attenuator control of transcription Four bacterial amino acid operons with attenuator control of transcription
Video: Condensation and Hydrolysis Animation

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