ICSE Class 8 Answered
explain the pyramid of numbers and types.
Asked by Chandrashekhar | 17 Aug, 2018, 02:06: PM
Expert Answer
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 Sheetal Kolte | 20 Aug, 2018, 04:19: PM
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