NEET 2016 Biology question

Gause's principle of competitive exclusion states that:

(1)More abundant species will exclude the less abundant species through competition
(2)Competition for the same resources excludes species having different food preferences
(3)No two species can occupy the same niche indefinitely for the same limiting resourcesCorrect
(4)Larger organisms exclude smaller ones through competition

Answer: (3)

Solution

G.F. Gause's competitive exclusion principle (Paramecium aurelia vs. P. caudatum experiments) states that two closely related species competing for the same limiting resources cannot coexist indefinitely; the competitively inferior one is eventually eliminated or shifts its niche. Hence option (3) is correct. Option

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Question ID VK-091925