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Author Question: Each villus contains a network of capillaries and a lymphatic vessel called a lacteal. (Read 31 times) |
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia
Coronary stent. Illustration of an angiogram revealing a coronary stent, which helps prevent closure