A) Struggle for existence
B) Discontinuous variations
C) Parasites and predators as natural enemies
D) Survival of the fittest
Correct Answer: B
Solution :
Natural theory of Darwin did not believe in any role of discontinuous variations. Darwin called these variations as ?sports?. While Hugo de Vries used the term mutation to these variations. These variations are sudden heritable changes which can occur in any stage of development.You need to login to perform this action.
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