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Standard X
Biology
Theory of Natural Selection
Question

According to Darwin, the organic evolution is due to
  1. Competition within closely related species
  2. Interspecific competition
  3. Reduced feeding efficiency in one species, due to the presence of interfering species
  4. Intraspecific competition

A
Interspecific competition
B
Reduced feeding efficiency in one species, due to the presence of interfering species
C
Competition within closely related species
D
Intraspecific competition
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Solution
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Interspecific competition is the competition among the different species for food shelter causes organic evolution, given by Darwin. Whereas intraspecific competition is the competition among the member of the same species. If there will be competition within the closely related species then evolution does not occur. The reduced feeding efficiency in one species due to the presence of interfering species is because of the struggle for existence.

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IV)when the resources are limited, the competitively superior species will eliminate the other species.
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