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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

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The horizontal fraction bar was introduced by the Arabs.

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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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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).

Maintenance of normal blood glucose levels. Maintenance of normal blood glucose levels.
Configurations of geometric isomers Configurations of geometric isomers
Trans and cis isomers of a peptide bond involving the imino nitrogen of proline Trans and cis isomers of a peptide bond involving the imino nitrogen of proline
Effects of Insulin and Glucagon on Glucose and Glycogen Effects of Insulin and Glucagon on Glucose and Glycogen
Representative carbohydrates: Glucose and Maltose Representative carbohydrates: Glucose and Maltose
Insulin, glucagon and blood glucose levels Insulin, glucagon and blood glucose levels
Video: Muscle Twitch and Muscle Tension - Motor unit size and force

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