The human body produces and destroys 15 million blood cells every second.
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Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.
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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
Calvin Cycle
The life cycle of Dictyostelium
The hydrologic cycle "الدورة الهيدرولوجية"
Life Cycle Nutrition: Pregnancy through Infancy
carbon cycle
Regulation of Bacteriophage Entry into the Lytic or Lysogenic Cycle