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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

GI series. (a) Upper GI series begins with a barium swallow, barium shake, or barium meal. (b) Lower GI series. (a) Upper GI series begins with a barium swallow, barium shake, or barium meal. (b) Lower
The patient is undergoing an allergy skin test by receiving subdermal inoculations of allergens. Inf The patient is undergoing an allergy skin test by receiving subdermal inoculations of allergens. Inf
The S-curve in the human vertebral column--a result of the evolution of bipedality--makes humans hig The S-curve in the human vertebral column--a result of the evolution of bipedality--makes humans hig
Research Methods Research Methods
Enhanced Fujita Intensity Scale Enhanced Fujita Intensity Scale
Absorption Methods in the Intestine Absorption Methods in the Intestine
Video: Darwin's Observation (Fossils, Galapagos Islands & Africa ) and Natural Selection (Adaptive Traits)

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