Which factors contribute to the success of organisms with variations?

  • A
    Maximum utilization of nature
  • B
    Adaptation
  • C
    Both maximum utilization of nature and adaptation
  • D
    Inherited traits

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Evolution is not continuous. It is a jerky and discontinuous process. This is the punch line of:

$A$: $A$ single large mutation called saltation can produce new species.
$R$: Mutations are directional.

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The importance of random accumulation of small genetic changes is sufficient to explain evolution. Who proposed this concept?

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