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Author Question: Nearly all large optical telescopes built today are ________. (Read 48 times) |
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.