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The average adult has about 21 square feet of skin.

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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

“Bad,” “neutral,” and “good” mutations. “Bad,” “neutral,” and “good” mutations.
A good Mnemonic to know Mg K Ca Na A good Mnemonic to know Mg K Ca Na
The waveform of a good oxygen sensor as displayed on a digital storage oscilloscope (DSO). Note ... The waveform of a good oxygen sensor as displayed on a digital storage oscilloscope (DSO). Note ...
Carrots are a good source of vitamin A Carrots are a good source of vitamin A
Nuts are also a good source of dietary fibre Nuts are also a good source of dietary fibre
Most Canadian seniors rated their health as good to excellent. Most Canadian seniors rated their health as good to excellent.
Video: Introduction to Genetics

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