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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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?
Illicit drug use costs the United States approximately $181 billion every year.
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?
Everyone has one nostril that is larger than the other.