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Author Question: Most of the cell's energy comes from spherical or rod-shaped organelles called mitochondria. ... (Read 53 times) |
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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).