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Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

The human body produces and destroys 15 million blood cells every second.

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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Transfer RNA (tRNA) Structure Transfer RNA (tRNA) Structure
Participation of water in biological reactions Participation of water in biological reactions
water bear water bear
Diversion of surface water Diversion of surface water
Introduction of Water to Mantle Rock Introduction of Water to Mantle Rock
Structure and function of the gills of a bony fish. Structure and function of the gills of a bony fish.
Video: Structure of Amino Acid, Peptide Bonds & Polypeptides

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