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Approximately 500,000 babies are born each year in the United States to teenage mothers.

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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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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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People about to have surgery must tell their health care providers about all supplements they take.

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There are approximately 3 million unintended pregnancies in the United States each year.

Evolutionary adaptation to a new environment via natural selection. Evolutionary adaptation to a new environment via natural selection.
The four ways in which animals exchange heat with the environment are radiation, evaporation, convec The four ways in which animals exchange heat with the environment are radiation, evaporation, convec
Metric bolt (cap screw) grade markings and approximate tensile strength. Metric bolt (cap screw) grade markings and approximate tensile strength.
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Self-esteem for Grade 3 and 4 children in Harter\'s studies Self-esteem for Grade 3 and 4 children in Harter\'s studies
A farmer has 100 acres of land on which she plans to grow wheat and corn. Each acre of wheat ... A farmer has 100 acres of land on which she plans to grow wheat and corn. Each acre of wheat ...
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