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Environ Mental Differences: In simplest terms, the process of evolution begins when a biological species encounters different environments in different parts of its distribution area. The species population reacts to the environ mental differencesmental differences by such modifications of the gene frequencies which make each local population an incipient race best adapted to survive in the environ mental differencesments prevalent in its particular territory. Progressive specialization and adaptation of the races to the local environ mental differencesments cause the gene frequencies to diverge and the racial differences to become more and more marked.
In the case of most mental disorders as well, the causes are complex and uncertain. One obtains a variety of clinical pictures in any type of chiJdhood psychosis. The interaction between hereditary and environ mental differencesmental influences is diverse and devious. An important part is played by ccmstitutionaV tactois suc as unusual sensitivity and functional disturbances during the process of maturing. Moreover, a disturbed mother-child relationship is almost always involved.
Official agencies are those supported by tax moneys. These agencies exist at the national, state, and local levels. The National Institute of Health, the Consumer Protection and environ mental differencesmental Health Service, and Health Services and Mental Health Administration are all part of the U. S. Public Health Service. This national agency is part of the Department of Health, Education, and Welfare. |
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