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Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Dental topography differs between A. Afarensis and H. erectus, suggesting the australopithecine teet Dental topography differs between A. Afarensis and H. erectus, suggesting the australopithecine teet
Children’s interactions with older siblings may help promote an understanding of other people’s ... Children’s interactions with older siblings may help promote an understanding of other people’s ...
Good body mechanics for lifting heavy objects. Good body mechanics for lifting heavy objects.
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How to convert verbal statements into algebraic equations (Part 1) How to convert verbal statements into algebraic equations (Part 1)
Government By the People, 2016 Presidential Election, 26th Edition Government By the People, 2016 Presidential Election, 26th Edition
Video: Predator- prey competition and symbiosis

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