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  1. explain the pyramid of numbers and types.


Asked by Chandrashekhar 17th August 2018, 2:06 PM
Answered by Expert

Ecological pyramids are of three types:

  • Pyramid of numbers
  • Pyramid of biomass
  • Pyramid of energy

Pyramid of numbers

  • A pyramid of numbers is constructed on the basis of the number of individuals which occupy a particular trophic level in a given area at a given time.
  • A large number of shrubs and grasses provide food and energy to the deer in grasslands. They are the producers and form the base of the pyramid.
  • As we move higher, there are deer and a few lions. However, their number is less as compared to that of grasses and shrubs.
  • The lions or the top carnivores are at the top of the pyramid and are found in fewer numbers.
Answered by Expert 20th August 2018, 4:19 PM
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