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Biology · 2022 · 2 marks
CBSE 2022 · Region 5 · Set 3 · Q6
What would be the best method to measure the total population density of the number of fishes in river and why?
What would be the best method to measure the total population density of the number of fishes in river and why ?
Marking-scheme solution
-Relative population density or number of fishes caught per trap
-Measuring total or absolute population densities is not an easily adoptable method /Cannot be done as populations are huge / Counting is impossible.
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CBSE Class 12 Biology past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.