( Consumers ( ( ( are also ) ( ( called heterotrophs ) ( because ( they ( must ( ( consume ( other organisms ) ) ( ( in order ) ( to ( get ( ( the energy ) ( necessary ( for life ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Consumers)) (VP (VBP are) (ADVP (RB also)) (VP (VBN called) (NP (NNS heterotrophs)) (SBAR (IN because) (S (NP (PRP they)) (VP (MD must) (VP (VB consume) (NP (JJ other) (NNS organisms)) (SBAR (IN in) (NN order) (S (VP (TO to) (VP (VB get) (S (NP (DT the) (NN energy)) (ADJP (JJ necessary) (PP (IN for) (NP (NN life))))))))))))))) (. .)))
Consumers are also called heterotrophs because they must consume other organisms in order to get the energy necessary for life.
(ROOT (S (NP (NP (NNS Organisms)) (ADJP (JJ incapable) (PP (IN of) (NP (NP (NN photosynthesis)) (SBAR (WHNP (WDT that)) (S (VP (MD must) (ADVP (RB therefore)) (VP (VB obtain) (NP (NN energy) (CC and) (NN carbon)) (PP (IN from) (NP (NN food))) (PP (IN by) (S (VP (VBG consuming) (NP (JJ other) (NNS organisms))))))))))))) (VP (VBP are) (VP (VBN called) (NP (NNS heterotrophs)))) (. .)))