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Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

From space earth shows itself as a planet covered mostly by water. From space earth shows itself as a planet covered mostly by water.
Animation of the apparent retrograde motion of Mars in 2003 as seen from Earth Animation of the apparent retrograde motion of Mars in 2003 as seen from Earth
Deciduous and permanent teeth. (A) The deciduous teeth, with the age of eruption given in months; (B Deciduous and permanent teeth. (A) The deciduous teeth, with the age of eruption given in months; (B
Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfind Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfind
The Sun as it appears from the surface of the Earth at sunrise. The Sun as it appears from the surface of the Earth at sunrise.
Composition of Continental Crust Composition of Continental Crust
Video: Polymerase chain reaction PCR - Animation

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