Question:

The pyramid of number deals with the number of

Updated On: Aug 15, 2022
  • species in a given area
  • individuals in a community
  • sub-species in a community
  • individuals in a trophic level.
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The Correct Option is D

Solution and Explanation

Pyramid of number is an ecological pyramid which employs the number of individuals per unit area at various trophic levels sequence wise with producers at the base and various consumers at successively higher levels. Pyramid of number assumes different shapes in different ecosystems, individuals in a trophic level. The pyramid of number in pond ecosystem is also upright. In forest ecosystem the pyramid of number is inter mediate. Here the number of primary consumers is more than producers as well as top consumers. In parasitic food chain the pyramid of number is inverted.
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Concepts Used:

Ecosystem

An ecosystem is a structural and functional unit of ecology where the living organisms come in to interact with each other and the surrounding environment.

Structure of the Ecosystem:

The structure of an ecosystem is distinguished by the organization of both biotic and abiotic components. This involves the distribution of energy in our environment. It also comprises the climatic conditions prevailing in that particular environment. 

There are two main components of the structure of an ecosystem, namely: 

  • Biotic Components
  • Abiotic Components

The biotic and abiotic components are interconnected in an ecosystem. It is an open system where the energy and components can flow through the boundaries.