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Q. Which of the following statements regarding species interdependence are true?
$I$. An association of two species where one is benefitted and other remains unaffected is called mutualism.
$II$. An interspecific association where both partners derive benefit from each other is called commensalism.
$III$. A direct food relation between two species of animals in which one animal kills and feeds on another is referred to as predation.
$IV$. A relationship between two species of organisms where both the partners are benefitted from each other is called symbiosis.

Organisms and Populations

Solution:

Correct answer is (b) $III$ and $IV$ only