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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Did you know?
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
Did you know?
About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
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![Asthma. (a) A normal bronchiole. (b) An asthmatic bronchiole. During an asthma “attack,” the bronchi](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_23_10_100501287.jpeg)