There are more nerve cells in one human brain than there are stars in the Milky Way.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
Genetic control of root hair development.
microscope slide
Preparing a Urine Specimen for Microscopic Examination (for Classroom Evaluation Only)