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Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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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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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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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc
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A ring link network reduces the number of wires it takes to interconnect all of the modules. A ring link network reduces the number of wires it takes to interconnect all of the modules.
The distribution of cones and rods over the human retina. The figure illustrates the number of cones ... The distribution of cones and rods over the human retina. The figure illustrates the number of cones ...
Separation of variable number tandem repeat (VNTR) alleles after PCR amplification Separation of variable number tandem repeat (VNTR) alleles after PCR amplification
Video: Insulin (glucose uptake by body cells), glycogenesis and lipogenesis

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