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rhythm, biological
(Encyclopedia) rhythm, biological, or biorhythm, cyclic pattern of physiological changes or changes in activity in living organisms, most often synchronized with daily, monthly, or annual cyclical…sweat
(Encyclopedia) sweat or perspiration, fluid secreted by the sweat glands of mammalian skin and containing water, salts, and waste products of body metabolism such as urea. The dissolved solid content…urea
(Encyclopedia) CE5 ureaureay&oobreve;ēˈə [key], organic compound that is the principal end product of nitrogen metabolism in most mammals. Urea was the first animal metabolite to be isolated…tracer
(Encyclopedia) tracer, an identifiable substance used to follow the course of a physical, chemical, or biological process. In chemistry the ideal tracer has the same chemical properties as the…Anatomy and
Physiology: How Hormones Work
How Hormones WorkAnatomy and
PhysiologyHormonesFeedback: Not Just for GuitarsHow Hormones WorkHypothalamus: The Head HonchoPituitary: The First LieutenantThyroidKidneys: Not Just for Urine!Pancreas…Anatomy and
Physiology: Hypothalamus: The Head Honcho
Hypothalamus: The Head HonchoAnatomy and
PhysiologyHormonesFeedback: Not Just for GuitarsHow Hormones WorkHypothalamus: The Head HonchoPituitary: The First LieutenantThyroidKidneys: Not Just for…Anatomy and
Physiology: Parasympathetic: Aaaaaaaaaaah!
Parasympathetic: Aaaaaaaaaaah!Anatomy and
PhysiologyThe Central and Peripheral Nervous SystemsYou've Got Some Nerve!Gyri and SulciThe Control CenterSensory and Motor ControlThalamus: The Switching…Rare and Deadly Diseases: Legionnaires' Disease
Legionnaires' DiseaseRare and Deadly DiseasesIntroductionHemorrhagic FeversEbola: Africa's Bloody DiseaseMarburgHantavirus: Four Corners, United StatesMad Cow DiseaseCJD: Mad Cow's Human…Brooke Astor, 2006 News
philanthropist and socialite, was allegedly the victim of elder abuse by her son, Anthony Marshall. Marshall's son, Philip, filed a court petition over the summer, accusing his father of…Michelle Smith deBruin
Michelle Smith deBruinBorn: Apr. 7, 1969Irish swimmer won three gold medals at the 1996 Olympics; accused of using performance-enhancing drugs but passed all tests until she was suspended for…Trending
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