Importance of survival of the fittest as the basic principle of competition in organic evolution was explained by
A
Lamarck
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B
Darwin
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C
Mendel
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D
De Vries
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Solution
The correct option is B Darwin
Darwin explained the theory of evolution by means of natural selection.
Natural selection is the mechanism by which new species arise from pre-existing ones. Natural selection states that there is 'struggle for existence' within a population and variation exists within all population.
The continuous competition between individuals for environmental resources creates a 'struggle for existence' and this struggle makes sure that certain organisms would fail to survive or reproduce.
This would eliminate less suited organisms and better-adapted organisms would survive and pass on their traits to the next generation leading to evolution.