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ECOLOGY

From: http : / / upload.wikimedia.org/wikipedia/commons/thumb/e/e1/Ecologia.jpg/511px-Ecologia.jpg

All living things have a way of life that depends on its structure and physiology and also rate environment in which they live, so that the physical and biological factors combine to form a wide variety of environments in different parts of the biosphere . Thus the life of a living being is closely adjusted to the physical conditions of their environment and the biotic, ie the life of his fellows and all other kinds of organisms that make up the community of which is part (1).

The more you learn about any kind of plant or animal, it is becoming increasingly clear that each species has undergone adaptations to survive in a particular set of environmental circumstances. Each one can show adaptations to wind, sun, humidity, temperature, salinity and other aspects of physical environment and adjusting to plants and animals specific living in the same region. (2)
ecology deals with the scientific study of the interrelationships between organisms and their environments, and both physical and biological factors that influence these relationships and are influenced by them. But relations between organisms and their environments are simply the result of natural selection, which is that all ecological phenomena have an evolutionary explanation.

Throughout the more than 3000 million years of evolution the competition engendered by reproduction and limited natural resources, has produced different ways of life that have minimized the struggle for food living space, shelter and the couple (1).
We can also define the term ecology as the study of the interrelationships of organisms with their environment physical and biotic. This term is now much more in the public consciousness because humans begin to notice some bad environmental practices of mankind in the past and today. It is important that we all know and appreciate the principles of this aspect of biology , so we can form an intelligent opinion on issues such as pollution with insecticides, detergents, mercury, waste disposal, dams for power generation power, and defects on humanity, on human civilization and the world in which we live.
The Greek word oikos meaning "house" or "place to live," and ecology (oikos logos) is literally the study of organisms "at home" in his native environment. The term was proposed by German biologist Ernst Haeckel in 1869, but many of the concepts of ecology predate the term in a century or more. The ecology deals with the biology of groups of organisms and their relationships with environmental . Autecology The term refers to studies of individual organisms, or populations of species isolated, and their relationships with environmental . The term contrasting synecology designates studies groups of partners to form a functional unit of the medium environment. The groups of organisms can be associated with three levels of organization: populations, communities and ecosystems . In the ecological use, a population is a group of individuals of any class of organism, a group of individuals of a single species. A community in the ecological sense, a biotic community includes all people who occupy an area defined physical. The community , along with the medium physical nonliving environment includes an ecosystem. Thus, the synecology is interested in the many relationships between communities and ecosystems . ecologist studying problems such as who lives in the shadow of whom, who eats who, who plays a role
in propagation and dispersal of whom, and how energy flows from one individual to the next in a food chain . The ecologist is to define and analyze those character istics of different populations of character istics of individuals and the factors that determine the grouping of populations in communities. (2)

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