( ( Organisms ( that ( can ( produce ( their ( own nutrients ) ) ) ) ) ) ( ( are ( ( ( called autotrophs ) , ) ( while ( ( ( the organisms ) ( that ( ( can not ) ( produce ( their ( own food ) ) ) ) ) ) ( are ( called heterotrophs ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Organisms)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB produce) (NP (PRP$ their) (JJ own) (NNS nutrients))))))) (VP (VBP are) (VP (VBN called) (NP (NNS autotrophs)) (, ,) (SBAR (IN while) (S (NP (NP (DT the) (NNS organisms)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (RB not) (VP (VB produce) (NP (PRP$ their) (JJ own) (NN food))))))) (VP (VBP are) (VP (VBN called) (NP (NNS heterotrophs)))))))) (. .)))
Organisms that can produce their own nutrients are called autotrophs, while the organisms that cannot produce their own food are called heterotrophs.
(ROOT (S (NP (NNS Animals)) (VP (MD can) (RB not) (VP (VB produce) (NP (PRP$ their) (JJ own) (NN food)) (S (VP (VBG making) (S (NP (PRP them)) (ADJP (JJ heterotrophs)))))))))