Competition NEET Questions

Biology - Ecology and Environment

Competition MCQ Questions


1.
Gause's Competitive Exclusion Principle states that:
A.
Two species with similar requirements can coexist permanently in the same niche
B.
Competition leads to mutualism between two species
C.
Larger species always exclude smaller species regardless of resources
D.
Two closely related species competing for the same limiting resources cannot coexist indefinitely
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ANSWER :
D. Two closely related species competing for the same limiting resources cannot coexist indefinitely
2.
In the rocky sea coasts of Scotland, Connell's experiments showed that the larger barnacle Balanus excludes the smaller barnacle Chathamalus from the intertidal zone. This is an example of:
A.
Interspecific competition
B.
Parasitism
C.
Mutualism
D.
Commensalism
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ANSWER :
A. Interspecific competition
3.
The phenomenon where a species whose distribution is restricted to a small geographical area expands its range when a competitively superior species is removed is called:
A.
Resource partitioning
B.
Competitive release
C.
Niche overlap
D.
Character displacement
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ANSWER :
B. Competitive release
4.
MacArthur showed that five closely related species of warblers living on the same tree avoided competition by:
A.
Behavioural differences in their foraging activities
B.
Migrating to different habitats
C.
Evolving different body sizes
D.
Becoming nocturnal
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ANSWER :
A. Behavioural differences in their foraging activities
5.
The Abingdon tortoise in Galapagos Islands became extinct within a decade after the introduction of which animal?
A.
Dogs
B.
Cats
C.
Goats
D.
Rats
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ANSWER :
C. Goats
6.
Competition is best defined as a process in which:
A.
The fitness of one species is significantly lower in the presence of another species
B.
Two species share resources equally without any conflict
C.
One species kills and consumes another species
D.
Both species mutually benefit from sharing resources
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ANSWER :
A. The fitness of one species is significantly lower in the presence of another species