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Ecosystems

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by

Teika Clavell

on 25 February 2013

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Transcript of Ecosystems

Ecosystems Mutualism A relationship between
organisms of two different species
in which both organisms’ benefits. Parasitism Relationship between two
species of plants or animals in which
one benefits at the expense of the
other, sometimes without killing it. Limiting Factors A limiting factor
causes a population to decrease in
size. A few limiting factors are food,
shelter, water, space. Population all the organisms of the
same group or species who live in
the same geographical area and are
capable of interbreeding. Species An individual belonging
to a group of organisms (or the
entire group itself) having common
characteristics and (usually) are
capable of mating with one another to produce fertile offspring. Habitat an ecological or environmental area that is inhabited by a particular species of animal, plant, or other type of organism. Niche The function or position of
an organism or population within
an ecological community, or the
particular area within a habitat
occupied by an organism. a community of living and non-living things that work together. Commensalism Symbiosis a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter. (An example of this is the relationship between a sea anemone with and a clown fish.) How does this relationship, between the clown fish and the sea anemone represent commensalism? the ecological relationship between two or more
organisms living closely together with some form of feeding relationship involved. (Mutualism, commensalism
and parasitism are all forms of
symbiosis)
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