I NEED HELP WITH MY BIO FINAL!!?

we might just go to the same school :) i have the same final study guide. #39 is the transfer of energy from one trophic level to another is not 100% efficient. this is because energy is lost while moving from one trophic level to another; not the entire organism is consumed or digested and the movement/ trasportation of organisms (inside its body) use up energy... hope that helped.... it takes foreverrr to finish! lol good luck! :)