Gause's principle of competitive exclusion states that:
Correct answer: A. No two species can occupy the same niche indefinitely for the same limiting resources.
- A. No two species can occupy the same niche indefinitely for the same limiting resources.
- B. Larger organisms exclude smaller ones through competition
- C. More abundant species will exclude the less abundant species through competition.
- D. Competition for the same resources exclude species having different food preferences.
Explanation
Two or more species with closely similar niche requirements cannot exist indefinitely in the same area as sooner or later they come into competition for possession of it. This is called Gause's competitive exclusion principle, which states that an ecological niche cannot be simultaneously and completely occupied by established populations of more than one species. Two species can live in the same habitat but not in the same niche. The more similar the two niches are, the more severe the competition is.
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