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Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

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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.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Iron Deficiency Symptoms Iron Deficiency Symptoms
Unit of blood. Unit of blood.
Blood Clotting Mechanism Blood Clotting Mechanism
Evolution from Supergiants to White Dwarfs Evolution from Supergiants to White Dwarfs
Black and White Out-Migration from Virginia and North and South Carolina, 1870–1940 (in thousands) Black and White Out-Migration from Virginia and North and South Carolina, 1870–1940 (in thousands)
Comparison between eukaryotic and prokaryotic cells Comparison between eukaryotic and prokaryotic cells
Video: Language Areas Animation

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