Define predation .

1.	Define predation .
Answer» Predation may be defined as an interspecific interaction between two species one of which is benefitted by capturing , killing and eating the other species . The species which is benefitted is called as predator or enemy and the one which is killed is called as prey .

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Define the following terms and give one example for each: (a) Commensalism (b) Parasitism (c) Camouflage (d) Mutualism (e) Interspecific competition
Select the statement which explains best parasitism. (a) One organism is benefited. (b) Both the organisms are benefited. (c) One organism is benefited, other is not affected. (d) One organism is benefited, other is affected.
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Select the statement which best explains commensalism (a) One organism is benefitted (b) Both the organisms are benefitted (c) One organism is benefitted , other is not affected (d) One organism is benefitted , other is affected .
Each environment can support a limited population depending upon itsA. Biotic potentialB. Carrying capacityC. NatalityD. Reproductive potential
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In an area, if there are 200 Parthenium plants but only a single huge banyan tree with a large canopy, the population density is measured in terms ofA. Number or biomassB. Number of per cent coverC. Biomass or per cent coverD. Number, biomass or per cent cover.
One species is benefitted and other is neutral. This association is calledA. MutualismB. CommensalismC. AmensalismD. Parasitism
The size of a population for any species is not a static parameter. It keeps changing in time, depending on various factors includingA. Food availabilityB. Predation pressureC. Adverse weatherD. All of the above

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