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Parasitism

If '+' sign i...

Question

If '+' sign is assigned to beneficial interaction, ' - ' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '-' refers to

A

Commensalism

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B

Parasitism

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C

Mutualism

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D

Ammensalism

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Solution

The correct option is B Parasitism
Parasitism is a non-mutual relationship between species, where one species, the parasite, benefits at the expense of the other, the host.
So if '+" is assigned to beneficial interaction '-' sign to detrimental and '0" sign to neutral interaction, then the population interaction represented by "+". "-" refers to parasitism.

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