By MICHAEL IP. Forty years ago, on March 29, 1973, the United States ended its military involvement in Vietnam. Although the war would continue another two years, the South Vietnamese would no longer receive American assistance.
Ecology (from Greek: Î¿á¼¶ÎºÎ¿Ï, house, or environment; -Î»Î¿Î³Î¯Î±, study of) is the scientific analysis and study of interactions among organisms and their environment. It is an interdisciplinary field that includes biology, geography, and Earth science.
Ecology: Study of interactions of living organisms with one another and with their physical environment. Habitat: place where a particular population of a species lives.Community: the many different species that live together in a habitat. Ecosystem: a community and all of the physical aspects of its habitat (soil, air, water, weather.cology: Study of interactions of living organisms with one another and with their physical environment. Habitat: place where a particular population of a species lives.