ECOLOGY
ECOSYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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no two ecologically similar species are able to coexist in the same community if they have one or more differences in their niche.
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two species with the same food habits tend to remain evenly balanced in numbers in the same region for a fairly long time.
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complete competitors cannot coexist.
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it is not possible to use experiments to observe changes that occur within an ecosystem.
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Detailed explanation-1: -The competitive exclusion principle says that two species can’t coexist if they occupy exactly the same niche (competing for identical resources). Two species whose niches overlap may evolve by natural selection to have more distinct niches, resulting in resource partitioning.
Detailed explanation-2: -The competitive principle, also known as Gause’s law of competitive exclusion states that two species competing for the same resources can not really co-exist. One out of the two competitors will have some advantages over the other species.
Detailed explanation-3: -The competitive exclusion principle is an ecological principle stating that when two competing life forms attempt to occupy the same niche, only one outcome is possible: One life form will drive out the other.
Detailed explanation-4: -The principle of competitive exclusion was proposed by G.F. Gause which states that two species competing for the same resources cannot coexist. This law is also known as Gause’s law. One population will drive off the other one.
Detailed explanation-5: -The competitive exclusion principle also referred to as Gause’s law states that two species in the same ecosystem but different niche competing for the same resource cannot coexist at constant population values if other ecological factors remain constant. Thus, the correct answer is option B.