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Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

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Everyone has one nostril that is larger than the other.

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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

The levels of biological organization The levels of biological organization
The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th
DNA molecules replicate to form identical chromatids DNA molecules replicate to form identical chromatids
A computer rendition of biological chromosomes (biology) A computer rendition of biological chromosomes (biology)
Subfields of biological anthropology Subfields of biological anthropology
The Biological Functions of Nucleic Acids: A Preview of Molecular Biology The Biological Functions of Nucleic Acids: A Preview of Molecular Biology
Video: Hormonal feedback loop components

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