CBSE 2025 · Region 7 · Set 2 · Q10 · 1 mark
Study the table given below showing the relationship between organism, its trophic level and kind of food chain it belongs to. Organism Trophic level Food chain Eagle P Grazing Earthworm Primary consumer Q Frog R Grazing
Select the option that correctly identifies $\displaystyle \mathrm{P}, \mathrm{Q}$ and R in the table given below : P Q R A Top Carnivore Detritus Secondary Consumer B Top Carnivore Detritus Primary Consumer C Scavenger Grazing Secondary Consumer D Scavenger Grazing Producer
| Organism | Trophic level | Food chain |
| Eagle | P | Grazing |
| Earthworm | Primary consumer | Q |
| Frog | R | Grazing |
| P | Q | R | |
| A | Top Carnivore | Detritus | Secondary Consumer |
| B | Top Carnivore | Detritus | Primary Consumer |
| C | Scavenger | Grazing | Secondary Consumer |
| D | Scavenger | Grazing | Producer |
Official answer
From CBSE’s own marking scheme for this paper.
(A)
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CBSE Class 12 Biology past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.