Competition NEET Questions

Biology - Ecology and Environment

Competition MCQ Questions


13.
Which of the following is NOT true about competition?
A.
Competition always leads to extinction of one species
B.
Competition can occur even when resources are abundant (interference competition)
C.
Competition can occur between unrelated species
D.
Competition can be reduced through resource partitioning
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ANSWER :
A. Competition always leads to extinction of one species
14.
Darwin's concept of 'struggle for existence' and 'survival of the fittest' is most directly related to:
A.
Interspecific competition
B.
Parasitism
C.
Mutualism
D.
Commensalism
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ANSWER :
A. Interspecific competition
15.
Which of the following experiments provided evidence for competition through 'competitive release'?
A.
Removal of starfish Pisaster led to extinction of invertebrates
B.
When Balanus was removed, Chathamalus expanded its range
C.
Introduction of cactus moth controlled prickly pear in Australia
D.
Lichens formed associations between fungi and algae
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ANSWER :
B. When Balanus was removed, Chathamalus expanded its range
16.
In Gause's Competitive Exclusion Principle, the eliminated species is the one which is:
A.
Larger in size
B.
Older in evolutionary age
C.
Higher in trophic level
D.
Competitively inferior
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ANSWER :
D. Competitively inferior
17.
Which of the following best describes the outcome when two species compete for the same resource and one chooses different feeding times?
A.
Competitive exclusion
B.
Niche convergence
C.
Character displacement
D.
Resource partitioning
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ANSWER :
D. Resource partitioning
18.
The fitness of a species during competition is measured in terms of:
A.
Intrinsic rate of natural increase (r)
B.
Carrying capacity (K)
C.
Population size (N)
D.
Death rate (d)
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ANSWER :
A. Intrinsic rate of natural increase (r)