Home Biology Ecosystem Energy Flow and Food Chain The tiger is left with 10J of energy in a gr…
Biology Ecosystem Energy Flow and Food Chain Single Correct MCQ
Published on: August 21, 2026

The tiger is left with 10J of energy in a grass–deer–tiger food chain. The energy available at grass level is

A
200 J
B
3000 J
C
1000 J
D
12,000 J

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Verified by Experts
The correct answer is:
C

According to the 10% law, only 10% of energy passes to the next trophic level.

If the tiger has 10 J, then deer had 100 J, and grass had 1000 J × 12 = 12,000 J at the start.

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