Which one of the following is not used for construction of ecological pyramids?
- Dry weight
- Number of individuals
- Rate of energy flow
- Fresh weight
The Correct Option is D
Solution and Explanation
Fresh weight is not commonly used for the construction of ecological pyramids. Ecological pyramids typically use measures such as dry weight (biomass), the number of individuals, or the rate of energy flow (productivity) to represent the trophic levels in an ecosystem. Fresh weight includes the weight of water content in organisms, which can vary greatly and is not as consistent or informative for ecological studies as dry weight.
So, the correct option is (D): Fresh Weight
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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.