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Does the occurrence of the diversity of animals on earth suggest their diverse ancestry also? Discuss this point in the light of evolution

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  • Inspite of the fact that animals have different variety of structures they don not have common ancestry.
  • This is because common ancestry may greatly limit the extent of diversity.
  • Many of the animals are inhabiting the same habitat, their evolution by geographical isolation and speciation is also not likely. 
  • Hence common ancestry for all the animals is not the likely theory.

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