( Scavengers ( ( ( play ( ( an ( important role ) ) ( in ( the ecosystem ) ) ) ) ( by ( consuming ( the ( dead ( animal ( and ( plant material ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Scavengers)) (VP (VBP play) (NP (NP (DT an) (JJ important) (NN role)) (PP (IN in) (NP (DT the) (NN ecosystem)))) (PP (IN by) (S (VP (VBG consuming) (NP (DT the) (JJ dead) (NN animal) (CC and) (NN plant) (NN material)))))) (. .)))
Scavengers play an important role in the ecosystem by consuming the dead animal and plant material.
(ROOT (S (NP (NP (DT A) (NN role)) (PP (IN of) (NP (NP (NNS mushrooms)) (PP (IN in) (NP (NNS ecosystems)))))) (VP (VBZ is) (VP (VBG breaking) (PRT (RP down)) (NP (JJ dead) (NN plant) (NN material)))) (. .)))