ECOLOGY (INTRODUCTION)

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  • Ecology, the study of relationships between organisms and the environment, has been
    a focus for human study for as long as we have existed as a species.
  • Ecologist may study
    individual organisms in an entire forest or grassland, or even the whole earth.
  • The ecology of
    the entire forest, grassland, or lakes for examples are treated as ecosystems.
  • Broadly, the
    ecosystem consists of two basic interacting components-the living or biotic, and the
    nonliving (physical and chemical, or abiotic (Smith and Smith, 2012).
  • The ecosystems of
    earth form the planetary ecosystem or biosphere.
  • Organism which refers to individual organism in relation to other organisms.
  • Populations refer to the group of organisms of the same species and how they interact with
    each other.
  • Communities which refers to natural assemblages of populations of different species and
    their interactions.
  • Ecosystems which refers to the entire natural system composed of communities and their
    physical environment.