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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).

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester
Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester
The clonal selection hypothesis The clonal selection hypothesis
Conformational Selection vs. Induced Fit Conformational Selection vs. Induced Fit
Natural selection acts on genetic variation Natural selection acts on genetic variation
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Video: Cataract

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