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A mutually beneficial association necessary for survival of both partners is (a) mutualism/symbiosis (b) commensalism (c)...

A mutually beneficial association necessary for survival of both partners is

(a) mutualism/symbiosis

(b) commensalism

(c) amensalism

(d) both A and B.

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Answer #1

Correct answer:- (a) mutulism/symbiosis

Explanation:- Mutualism is an association between individuals of two species, both of which are benefitted but cannot live separately under natural conditions e.g. instances of mutualism exist between animals and plants and also in between plants e.g. lichens. Ammensalism is an interaction in which one species causes harm to another spices with its toxic secretion often without gaining any benefit from the interaction. Commensalism is the relationship between individuals of two species of which one is benefitted and the other is almost unaffected i.e.; neither benefitted nor harmed.

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