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Did you know?

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.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

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The average adult has about 21 square feet of skin.

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To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Continued harvest of (a) cod and (b) mountain sheep by humans has caused evolutionary changes in mat Continued harvest of (a) cod and (b) mountain sheep by humans has caused evolutionary changes in mat
Open, or compound The fracture projects through the skin and there is a possibility of infection or Open, or compound The fracture projects through the skin and there is a possibility of infection or
Pancreatitis. Inflammation of the pancreas may be the result of a bacterial infection, trauma, or ch Pancreatitis. Inflammation of the pancreas may be the result of a bacterial infection, trauma, or ch
Pneumonia. This common lung inflammation may be caused by bacteria, viruses, or fungi and is often d Pneumonia. This common lung inflammation may be caused by bacteria, viruses, or fungi and is often d
Laboratory tests to screen for infection Laboratory tests to screen for infection
Types of fungi and a fungal infection of the palate. Types of fungi and a fungal infection of the palate.
Video: Darwin's Observation (Fossils, Galapagos Islands & Africa ) and Natural Selection (Adaptive Traits)

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