Within an ecosystem, during which stage is the greatest amount of energy lost?
- Asunlight $\rightarrow$ trophic level 1
- Btrophic level 1 $\rightarrow$ trophic level 2
- Ctrophic level 2 $\rightarrow$ trophic level 3
- Dtrophic level 3 $\rightarrow$ trophic level 4