The pyramid below shows energy stored at each trophic level (kJ/m^2/yr) in a grassland ecosystem.
Roughly what percent of energy is transferred between trophic levels?
- A
About 90 percent
- B
About 50 percent
- C
About 1 percent
- Dcheck_circle
About 10 percent
Explanation
Each level retains roughly 10 percent of the level below (20000 -> 2000 -> 200 -> 20), consistent with the standard 10 percent rule.