During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Thyroid conditions may make getting pregnant impossible.
Immune Response
A Dose-Response Curve
Physiological Stress Response (cont.)
Sexual Response Cycle
Conservation biology arose in response to biodiversity loss