( ( ( ( ( ( A heterotroph ) ( is ( ( an animal ) ( that ( ( ca n't ) ( make ( its ( own ( food supply ) ) ) ) ) ) ) ) ) , ) so ) ( they ( have ( to ( ( ( ( ( eat ( other things ) ) , ) ( like ( ( plants or ) ( other animals ) ) ) ) , ) ( to survive ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT A) (NN heterotroph)) (VP (VBZ is) (NP (NP (DT an) (NN animal)) (SBAR (WHNP (WDT that)) (S (VP (MD ca) (RB n't) (VP (VB make) (NP (PRP$ its) (JJ own) (NN food) (NN supply))))))))) (, ,) (IN so) (S (NP (PRP they)) (VP (VBP have) (S (VP (TO to) (VP (VB eat) (NP (JJ other) (NNS things)) (, ,) (PP (IN like) (NP (NP (NNS plants)) (CC or) (NP (JJ other) (NNS animals)))) (, ,) (S (VP (TO to) (VP (VB survive))))))))) (. .)))
A heterotroph is an animal that can't make its own food supply, so they have to eat other things, like plants or other animals, to survive.
(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)))))))))