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Science · 2023 · 2 marks
CBSE 2023 · Region 5 · Set 1 · Q26
In the following food chain, if 50 J of energy was available to the hawk, how much energy would have been present at the first and third tropic…
In the following food chain, if $\displaystyle 50$ J of energy was available to the hawk, how much energy would have been present at the first and third tropic levels? Justify your answer.
Marking-scheme solution
The energy at first trophic level will be $\displaystyle 5{,}00{,}000$ J.
The energy at third trophic level will $\displaystyle 5000$ J.
$\displaystyle 10$% can be taken as the average value for the amount of organic matter/energy that is present at each step and reaches the next level of consumers.
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