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"An Ecosystem's Disturbance By A Pollutant
Beginning of Essay
L. Lehr
Freedman defines a pollutant as "the occurrence of toxic substances or energy in
a larger quality then the ecological communities or particular species can
tolerate without suffering measurable detriment" (Freeman, 562). Although the
effects of a pollutan .... Middle of Essay
.... can affect both a population and an ecosystem. A pollutant on a
population level can be either non-target or target. Target effects are those
that can kill off the entire population. Non-target effects are those that
effects a significant number of individuals and spreads over to other
individuals, such is the case when crop dusters spread herbicides, insecticides.
Next we look at population damage by a pollutant, which in turn has a
detrimental effect on the ecosystem in several ways. First, by the killing of an
entire population by a pollutant, it offsets the food chain and potentially
kills off other species that depended on tha ....
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Words: 2974 - Pages: 11
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