The familiar sounds of your heart are made by the heart's valves as they open and close.
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.
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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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Medication errors are three times higher among children and infants than with adults.
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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.
Juvenile Common House Gecko (H. frenatus)
common housefly (Musca domestica)
All living organisms descended from a common ancestral cell
Security Tips for Accepting Various Forms of Payment
Common Phobias Cont
A Listing of Repeat Units for 10 of the More Common Polymeric Materials