In forming the theory of evolution by natural selection,Darwin was greatly influenced by

  • A
    Mutations of Hugo de Vries
  • B
    Malthus idea of population control
  • C
    Environmental factors
  • D
    Lamarck acquired characters

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Select the correct option for gene flow.

The Natural Selection Theory of Darwin is objected to,because it:

Any change in gene frequency in a population is called ......

Which of the following is essential for speciation?

Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as

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