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victus00 [196]
3 years ago
9

What is the principle of common decent?

Biology
1 answer:
viktelen [127]3 years ago
6 0

Answer:

Common descent is a theory that states that all organisms are descendants of a single common ancestor.

Explanation:

Common Descent:

  • By definition, common descent signifies the common ancestry of a group of organisms.
  • Common descent is an approach to explain the similarities between different organisms.
  • The theory of common descent states that all organisms have descended from one common ancestor and therefore, possess some degree of similarity.
  • Common descent has helped explain the genetic and structural similarities between two entirely different organisms such as reptiles and birds.
  • For example, pentadactyl limbs i.e. limb with five fingers or digits is a highly conserved characteristics of all tetrapods. This indicates common descent with modification.  
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<h2>Daughter Nucleus</h2>

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~_~~_~-.

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