# A scientist conducted a study on four different species of organisms(W, X, Y and Z) that are related in an aquatic food chain. He estimated the total number of individuals in the population of each species and the average biomass of each individual.SpeciesAverage biomass of each individual/arbitrary unitsNumber of individualsW$5000$$85X14500$$43$Y$32$$200Z18$$4000$Which of the following shows the correct relation of these species in a food chain?

Z $\rightarrow$ Y $\rightarrow$ W $\rightarrow$ X

##### SOLUTION
Biomass is the amount of living organic matter. In aquatic food chain, biomass keeps increasing from producer to top consumer i.e., Producer $<$ Primary consumer $<$ Secondary consumer $<$ Tertiary consumer. In aquatic food chain however the number of individuals at each trophic level goes on decreasing from producer to top consumer, i.e., Producer $>$ Primary consumer $>$ Secondary consumer $>$ Tertiary consumer. so, the correct relation of tabulated species in a food chain should be Z(Producer) $\rightarrow$ Y(Primary consumer) $\rightarrow$ W(Secondary consumer) $\rightarrow$ X(Tertiary consumer).

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Single Correct Medium Published on 18th 09, 2020
Questions 203525
Subjects 9
Chapters 126
Enrolled Students 126

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