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CBSE - X - Biology - Heredity and Evolution

What is full-fledged adaption ?

Asked by sucharitasahoo1 4th October 2017, 11:02 PM
Answered by Expert


  • Adaptation is a process which makes organisms better suited to their habitat. Adaptations are produced by natural selection. Adaptation may cause either the gain of a new feature, or the loss of an ancestral feature. 
  • A critical principle of ecology is that of competitive exclusion which states that no two species can occupy the same niche in the same environment for a long time. Consequently, natural selection will tend to force species to adapt to different ecological niches. 
  • An area of current investigation in evolutionary developmental biology is the developmental basis of adaptations and exaptations. This research addresses the origin and evolution of embryonic development and how modifications of development and developmental processes produce novel features.
  • These studies have shown that evolution can alter development to produce new structures. It is also possible for structures that have been lost in evolution to reappear due to changes in developmental genes.
  • Thus, we can conclude that adaptations favoured by natural selection have a role in the mechanism of evolution favouring the formation of new species and inheritance of desirable characteristics from generation to generation.
Answered by Expert 5th October 2017, 11:36 AM

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