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Science · 2023 · 2 marks
CBSE 2023 · Region 2 · Set 2 · Q26
(a)What is meant by trophic level ?(b)On an average, what percentage of energy is transferred to the second trophic level from the first trophic level ? Which categories of consumers do the organisms of the second trophic level belong to ?
(a)
What is meant by trophic level ?
(b)
On an average, what percentage of energy is transferred to the second trophic level from the first trophic level ? Which categories of consumers do the organisms of the second trophic level belong to ?
Marking-scheme solution
(a)
Each step or level of the food chain forms a trophic level.
(b)
•$\displaystyle 10$%
Primary consumers/Herbivores
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CBSE Class 10 Science past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.