- 行业: Education
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Founded in 1946, Palomar College is a public two-year community college in the city of San Marcos, located in north San Diego County, California. Palomar offers over 300 associate degree, certificate programs and is designated by the U.S. Department of Education as an Hispanic-Serving Institution ...
A bone disorder in which there is a progressive reduction in bone density resulting in brittleness and increased porosity. People with osteoporosis are at a high risk for bone fractures. This disorder is most commonly found among post-menopausal women. However, it also occurs at a high frequency among men who have low testosterone levels (e. G. , men with Klinefelter syndrome).
Industry:Anthropology
A dark colored organic pigment produced in the skin. There are two forms of melanin----pheomelanin, which is red to yellow in color, and eumelanin, which is dark brown to black. People with light complexioned skin mostly produce pheomelanin, while those with dark colored skin mostly produce eumelanin. High concentrations of melanin near the surface of the skin result in a darker complexion. Suntanned skin also has higher concentrations of melanin.
Industry:Anthropology
A pattern of evolution in which different parts of the body evolve at different rates. In the case of humans, we essentially attained our modern form below the neck by at least 2 million years ago. However, our cranial capacity did not reach its current size until after 100,000 years ago.
Industry:Anthropology
Nonindustrial systems of plant cultivation characterized by continuous and intensive use of land and labor.
Industry:Anthropology
Enlargement in the diameter of blood vessels so that an increased flow occurs. See vasoconstriction.
Industry:Anthropology
Embryonic cells that have not yet become specialized tissue cells--they potentially can develop into any type of tissue in the body. Children and adults retain somewhat specialized stem cells in their bone marrow. These stem cells are the source of the major blood cells--erythrocytes, leukocytes, and thrombocytes (platelets).
Industry:Anthropology
Electromagnetic radiation ranging in wave length just beyond violet in the visible spectrum of light. The human eye cannot detect u. V. Our sun is the major source of u. V. Radiation on earth. Prolonged exposure to u. V. Can result in destructive skin burns and can promote the onset of skin cancer.
Industry:Anthropology
Electromagnetic energy that is given off by an object. Our bodies lose heat by radiation. More specifically, we give off infrared radiation like the heat from a light bulb
Industry:Anthropology
Eating only vegetable foods. Animals that have this sort of diet are herbivores or vegetarians. See carnivorous and omnivorous.
Industry:Anthropology
Eating only meat. Animals that have this sort of diet are carnivores. See herbivorous and omnivorous.
Industry:Anthropology
