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orthogenesis    
n. 定向进行,系统发生说

定向进行,系统发生说


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  • Orthogenesis - Wikipedia
    Orthogenesis assumes that variation is not random but is directed towards fixed goals Selection is thus powerless, and the species is carried automatically in the direction marked out by internal factors controlling variation
  • Orthogenesis | Evolutionary Theory, Natural Selection Genetics . . .
    orthogenesis, theory that successive members of an evolutionary series become increasingly modified in a single undeviating direction
  • What Is Orthogenesis and Why Was It Rejected by Science?
    Orthogenesis is a historical concept in evolutionary biology that proposed a directed form of evolution This idea suggested that organisms evolve in a specific, predetermined direction
  • Orthogenesis - an overview | ScienceDirect Topics
    Orthogenesis is defined as the attribution of evolution to internal factors that drive a species in a particular direction, independent of natural selection How useful is this definition? You might find these chapters and articles relevant to this topic
  • Orthogenesis or Progressive Evolution - Anthroholic
    Orthogenesis, also known as Progressive Evolution, is a biological theory that suggests species evolution follows a predetermined path, leading to a specific endpoint
  • ORTHOGENESIS Definition Meaning - Merriam-Webster
    The meaning of ORTHOGENESIS is variation of organisms in successive generations that in some especially former evolutionary theories takes place in some predestined direction resulting in progressive evolutionary trends independent of external factors
  • Orthogenesis - bionity. com
    Orthogenesis, orthogenetic evolution, progressive evolution or autogenesis, is the hypothesis that life has an innate tendency to move in a unilinear fashion due to some internal or external "driving force"
  • Orthogenesis Explained
    In 1996, Michael Ruse defined orthogenesis as "the view that evolution has a kind of momentum of its own that carries organisms along certain tracks" The possibility of progress is embedded in the mediaeval great chain of being, with a linear sequence of forms from lowest to highest
  • What is the Meaning Behind Orthogenesis? - Scifi Dimensions
    Orthogenesis proposes that evolution proceeds in a predetermined direction due to internal factors, while natural selection posits that evolution is driven by the differential survival and reproduction of individuals with advantageous traits in a given environment
  • Orthogenesis Definition - History of Science Key Term | Fiveable
    Orthogenesis is a historical biological hypothesis proposing that evolution follows a predetermined, linear path rather than being driven by natural selection This concept suggests that species evolve in a specific direction, often leading to progressive changes over time





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