Energy flow through trophic levels follows the 10% rule.
What is the approximate energy at the top trophic level marked "?"?
- Acheck_circle
5 kJ
- B
0.5 kJ
- C
50 kJ
- D
500 kJ
Explanation
Each step transfers ~10% of energy: 5000 -> 500 -> 50 -> 5 kJ at the top level.