Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Adults in the Berlin Study of Aging show earlier declines on tests of nonverbal, fluid tasks (upper ...
Scientists do research in the laboratory and in the field
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