( ( ( The ( other organisms ) ) ( in ( a ( food chain ) ) ) ) ( ( ( ( are consumers ) , ) ( because ( they ( all ( ( get ( their ( ( energy and ) biomass ) ) ) ( by ( consuming ( ( -LRB- ( eating -RRB- ) ) ( other organisms ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ other) (NNS organisms)) (PP (IN in) (NP (DT a) (NN food) (NN chain)))) (VP (VBP are) (NP (NNS consumers)) (, ,) (SBAR (IN because) (S (NP (PRP they)) (RB all) (VP (VB get) (NP (PRP$ their) (NN energy) (CC and) (NNS biomass)) (PP (IN by) (S (VP (VBG consuming) (NP (PRN (-LRB- -LRB-) (NP (NN eating)) (-RRB- -RRB-)) (JJ other) (NNS organisms))))))))) (. .)))
The other organisms in a food chain are consumers, because they all get their energy and biomass by consuming (eating) other organisms.
(ROOT (S (NP (NP (NNS Organisms)) (SBAR (WHNP (WDT that)) (S (VP (VBP depend) (PP (IN on) (NP (NP (JJ other) (NNS organisms)) (PP (IN for) (NP (NN food))))))))) (VP (VBP play) (NP (NP (DT the) (NN role)) (PP (IN of) (NP (NP (DT a) (NN consumer)) (PP (IN in) (NP (DT the) (NN food) (NN chain))))))) (. .)))