If '+' sign is assigned to beneficial interac | vedclass

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(D) The population interaction represented by $'+, -'$ is known as parasitism.In this interaction,one species (the parasite) benefits $('+')$ while th

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parasitism

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(D) The population interaction represented by $'+, -'$ is known as parasitism.In this interaction,one species (the parasite) benefits $('+')$ while the other species (the host) is harmed $('-')$.Parasitism is an association in which one organism (the parasite) lives on (ectoparasitism) or in (endoparasitism) the body of another organism (host),from which it obtains its nutrients.This association is beneficial for the parasites as they get a continuous supply of nutrients from their host and are able to rapidly multiply their numbers.However,it is detrimental for the host organism as parasitic infection leads to various complications and diseases in the host body,which may also be fatal to the host under certain circumstances.

If $'+'$ sign is assigned to beneficial interaction,$'-'$ sign to detrimental and $'O'$ sign to neutral interaction,then the population interaction represented by $'+, -'$ refers to

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