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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).
Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.
According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
The familiar sounds of your heart are made by the heart's valves as they open and close.
![An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associat](https://biology-forums.com/gallery/47/medium_14755_01_10_12_7_54_15_920984.jpeg)
![Bergmann’s and Allen’s rules expressed in two rabbit species. (a) A snowshoe hare. (b) A desert-livi](https://biology-forums.com/gallery/47/medium_274247_21_01_15_7_42_36_202932281.jpeg)