Which tropic level in an energy pyramid do yellowfin tuna fill?

answer: secondary consumer

explanation: the yellow tuna fish belongs to the secondary consumer. it feeds on the smaller fishes for their energy needs.

the secondary consumers are the fishes that obtain their energy by feeding on the primary consumers.

the primary consumers feed on the producers for their energy in the marine ecosystem.

its like this, "if i give a plant an unlimited amount of sunlight,then the plant will grow to its largest possible size."

hope it let me know if it does or doesn't =^-^=

not sure if this what   you'r looking for would be percent composition