Class 11 Biology The Living World DIVERSITY IN THE LIVING WORLD

DIVERSITY IN THE LIVING WORLD

  • About 1.7 - 1.8 million species are known and described.
  • Some organisms are so small that they cannot be seen with naked eyes, some are very huge in size.
  • They are found in wide range of habitats like oceans, forests, lakes, deserts, etc.
  • All these organisms which live on Earth together make up biodiversity.
  • Nomenclature – Naming an organism so that it is known by the same name all over the world.
  • ICBN – International Code for Botanical Nomenclature
  • ICZN - International Code for Zoological Nomenclature
  • There are two components of scientific names – Generic name and specific epithet. This system of providing a name with two components is called Binomial nomenclature.
  • Binomial Nomenclature was given by Carolus Linnaeus.
  • For example: scientific name of Mango is Mangifera indica.

Mangifera represents genus and indica represents species.

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