NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology Diversity in Living World-What Is Living? Revision (Page 3 of 7)

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Understanding what is Classification

Biological classification

  • The art of identifying distinctions among organisms and placing them into groups that reflect their most significant features and relationship is called biological classification.
  • Biological classification is the process by which scientists group living organisms. Organisms are classified based on how similar they are.
  • Biological classification determined by examining the physical characteristics of an organism but modern classification uses a variety of te

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Some Definition Related To Species

1) Sibling species or Cryptic species: -

  • Members of species which are morphologically similar but reproductively isolated are known as sibling species i. e. they cannot interbreed among themselves.
  • Sibling species is one taxonomic species (because these members have similar morphology) but they are different biological species. [Because they cannot interbreed]

eg. Brassica oleracea

2) Allopatric species: -

  • The species found in different geographical regions and have geographical

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