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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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Excessive alcohol use costs the country approximately $235 billion every year.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.