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If '+' sign is assigned to beneficial in...

If '+' sign is assigned to beneficial interaction, '-' sign to deterimental and '0' sign to neutral represented by '+ '-' refers to

A

mutualism

B

amensalism

C

commensalism

D

parasitism

Text Solution

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The correct Answer is:
D
Parasitism is a relationship between two living organisms of different species in which one organism, i.e. parasite obtains its food directly form the host.
In this relationship the parasite is benefitted positive (+) and the host is harmed negative(-), So this types of population interaction is represented by '+' '-'.
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If '+' sign is assigned to benefited interaction '-' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '-' refers to:

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