With reference to bdquo Population Interaction between two species consider the following stat...........

Environment and Ecology Concept of Ecosystems

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With reference to „Population Interaction? between two species, consider the following statements:

1. Both the species benefit in mutualism

2. Both the species lose in competition

3. In both parasitism and predation only one species benefits

Which of the statements given above are correct

1 and 2 only

2 and 3 only

1 and 3 only

1,2 and 3 only

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Explanation:

? Both the species benefit in mutualism and both lose in competition in their interactions with each other. In both parasitism and predation only one species benefits (parasite and predator, respectively) and the interaction is detrimental to the other species (host and prey, respectively). The interaction where one species is benefitted and the other is neither benefitted nor harmed is called commensalism. In amensalism on the other hand one species is harmed whereas the other is unaffected. Predation, parasitism and commensalism share a common characteristic– the interacting species live closely together. Hence all the statements are correct.