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Author Question: The most recently discovered species of Homo, a dwarfed form found on an island in the Pacific, has ... (Read 222 times) |
The human body produces and destroys 15 million blood cells every second.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.