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Author Question: Which of the following is controlled by the involuntary action of respiration? a. Lungs b. ... (Read 155 times) |
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There are more bacteria in your mouth than there are people in the world.
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The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
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Your heart beats over 36 million times a year.