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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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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

Inheritance of an autosomal dominant disorder Inheritance of an autosomal dominant disorder
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Skin signs are objective evidence of an illness or disorder. They can be seen, measured, or felt. Skin signs are objective evidence of an illness or disorder. They can be seen, measured, or felt.
Blood Clotting Mechanism Blood Clotting Mechanism
Common skin signs are often evidence of an illness or disorder. A pustule is a small, elevated, ... Common skin signs are often evidence of an illness or disorder. A pustule is a small, elevated, ...
APA Guidelines for Treating Manic and Depressive Episodes in Bipolar Disorder APA Guidelines for Treating Manic and Depressive Episodes in Bipolar Disorder
Video: Types of antimicrobial substances (interferons & complement protein)

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