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Author Question: When a vertebrate animal contracts the flexor muscles of a leg, it relaxes the extensor muscles of ... (Read 40 times) |
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.