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Question
Assertion :In an aquatic ecosystem, pyramid of biomass is inverted. Reason: Biomass depends upon reproductive potential and longevity of individuals.
Assertion :In an aquatic ecosystem, pyramid of biomass is inverted. Reason: Biomass depends upon reproductive potential and longevity of individuals.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
In a marine aquatic ecosystem, the biomass of phytoplanktons(producers) is smaller than that of zooplanktons (primary consumers) and the biomass of zooplanktons is smaller than that of secondary consumers. This results in the inverted pyramid of biomass is an aquatic ecosystem. This shape is the consequence of the very short life spans of phytoplanktons, which are consumed almost as rapidly as they are formed. Also phytoplanktons have high reproductive potential, i.e., they reproduce rapidly.So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.
In a marine aquatic ecosystem, the biomass of phytoplanktons(producers) is smaller than that of zooplanktons (primary consumers) and the biomass of zooplanktons is smaller than that of secondary consumers. This results in the inverted pyramid of biomass is an aquatic ecosystem. This shape is the consequence of the very short life spans of phytoplanktons, which are consumed almost as rapidly as they are formed. Also phytoplanktons have high reproductive potential, i.e., they reproduce rapidly.
So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.
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