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2.   Which one of the following interspecies relationships has a negative effect on the abundance of both species?

A predation
B competition
C commensalism
D parasitism

1 Answer

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Hello.

The correct answer you are looking for is B. competition. The process of competing for resources, such as food, could and most likely would result in either the endangerment of a species, or an extinction. In your case, competition is the act of interactions between organisms, in which birth, growth and death depend on gaining a share of a limited environmental resources. Thus, competition proves to be a negative affect on an abundance of 'both species.'
User Creasixtine
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