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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.