orthogenesis (Crossword)

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We didn't find answers to the clue “Orthogenesis” but we did find a clue where “Orthogenesis” could be the answer:
  1. Clue: Obsolete biological theory
    Answer: orthogenesis

Definitions of “orthogenesis”
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• Orthogenesis, orthogenetic evolution
• A theory that the evolution of a species in a continuous
• A biological principle that the evolution of an animal species is in a given direction
• The doctrine that evolution is governed by intrinsic factors and occurs in predictable directions
• Theory that successive members of an evolutionary series become increasingly modified in a single undeviating direction
• The doctrine that the phylogenetic evolution of organisms takes place systematically in a definite direction and not accidentally in many directions

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