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 is the study of the interactions between organisms and their environment. Various different species living in the same place, interacting amongst themselves and with their environment together form an ecosystem.Within an ecosystem there are several food webs. A food web is an overview of which species in an environment consume which species (plant, animal or both).A healthy ecosystem has a variety of organisms that play different roles in various food chains. If the ecosystem loses one of its members, it can be crippled.cology is the study of the interactions between organisms and their environment. Various different species living in the same place, interacting amongst themselves and with their environment together form an ecosystem.