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Cyanide works by making the human body unable to use oxygen.

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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Independent assortment of chromosomes at meiosis explains Mendel's ratio Independent assortment of chromosomes at meiosis explains Mendel's ratio
Human Eyelash Human Eyelash
Lateral View of the human brain in cross section Lateral View of the human brain in cross section
The Human Eye and its Structures The Human Eye and its Structures
Nondisjunction of chromosomes Nondisjunction of chromosomes
The anterior and posterior human skeleton. The anterior and posterior human skeleton.
Video: Cardiac Cycle (Part 4 of 4)

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