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What are the different levels of biodiversity? - Geography

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Question

What are the different levels of biodiversity?

Answer in Brief

Solution

Biodiversity itself is a combination of two words, Bio (life) and diversity (variety).
In simple words, biodiversity is the number and variety of organisms found within a specified geographic region. It is a result of hundreds of millions of years of evolutionary history. Biodiversity can be discussed at three levels:

  • Genetic diversity;
  • Species diversity;
  • Ecosystem diversity.
  1. Genetic diversity: Genetic diversity refers to the variation of genes within species.
  2. Species diversity: Species diversity refers to the variety of species. It relates to the number of species in a defined area. The diversity of species can be measured through its richness, abundance and types.
  3. Ecosystem diversity: The broad differences between ecosystem types and the diversity of habitats and ecological processes occurring within each ecosystem type constitute the ecosystem diversity.
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Levels of Biodiversity
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Chapter 16: Biodiversity and Conservation - Exercises [Page 136]

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NCERT Fundamentals of Physical Geography [English]
Chapter 16 Biodiversity and Conservation
Exercises | Q 2. (ii) | Page 136
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