Question
Biology Question on Eco-System
Which one of the following is not used for construction of ecological pyramids?
A
Dry weight
B
Number of individuals
C
Rate of energy flow
D
Fresh weight
Answer
Fresh weight
Explanation
Solution
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