( ( ( The ( ( most important ) thing ) ) ( to ( remember ( about ( food ( ( chains and ) webs ) ) ) ) ) ) ( ( is ( that ( energy ( flows ( ( ( from ( the producers ) ) and ) ( through ( each consumer ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (ADJP (RBS most) (JJ important)) (NN thing)) (SBAR (S (VP (TO to) (VP (VB remember) (PP (IN about) (NP (NN food) (NNS chains) (CC and) (NNS webs)))))))) (VP (VBZ is) (SBAR (IN that) (S (NP (NN energy)) (VP (VBZ flows) (PP (PP (IN from) (NP (DT the) (NNS producers))) (CC and) (PP (IN through) (NP (DT each) (NN consumer)))))))) (. .)))
The most important thing to remember about food chains and webs is that energy flows from the producers and through each consumer.
(ROOT (S (NP (NNP Food) (NNS chains)) (VP (VBP carry) (NP (NN energy)) (PP (IN from) (NP (NP (NNS producers)) (PP (TO to) (NP (NNS consumers)))))) (. .)))