( ( ( ( ( ( ( ( Phototropism and ) gravitropism ) ( function ( to ( differentially ( adjust ( ( the position ) ( of ( ( ( the ( plant 's ) ) ( major ( organ systems ) ) ) ( so that ) ) ) ) ) ) ) ) ) , ) ( ( regardless ( of ( how ( ( the seed ) ( is ( orientated ( in ( the soil ) ) ) ) ) ) ) ) ( , ( ( the shoot ) ( ( grows up ) ( into ( the sunlight ) ) ) ) ) ) ) and ) ( ( the roots ) ( ( grow down ) ( into ( ( the soil ) ( for ( water ( and ( mineral absorption ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Phototropism) (CC and) (NNP gravitropism)) (VP (VBP function) (S (VP (TO to) (VP (ADVP (RB differentially)) (VB adjust) (NP (NP (DT the) (NN position)) (PP (IN of) (NP (NP (NP (DT the) (NN plant) (POS 's)) (JJ major) (NN organ) (NNS systems)) (ADJP (RB so) (DT that)))))))))) (, ,) (S (ADVP (RB regardless) (PP (IN of) (SBAR (WHADVP (WRB how)) (S (NP (DT the) (NN seed)) (VP (VBZ is) (VP (VBN orientated) (PP (IN in) (NP (DT the) (NN soil))))))))) (, ,) (NP (DT the) (NN shoot)) (VP (VBZ grows) (PRT (RP up)) (PP (IN into) (NP (DT the) (NN sunlight))))) (CC and) (S (NP (DT the) (NNS roots)) (VP (VBP grow) (PRT (RP down)) (PP (IN into) (NP (NP (DT the) (NN soil)) (PP (IN for) (NP (NN water) (CC and) (NN mineral) (NN absorption))))))) (. .)))
Phototropism and gravitropism function to differentially adjust the position of the plant's major organ systems so that, regardless of how the seed is orientated in the soil, the shoot grows up into the sunlight and the roots grow down into the soil for water and mineral absorption.
(ROOT (S (NP (NNP Gravitropism)) (VP (VBZ ensures) (SBAR (SBAR (IN that) (S (NP (NNS roots)) (VP (VBP grow) (PP (IN into) (NP (DT the) (NN soil)))))) (CC and) (SBAR (IN that) (S (NP (NNS shoots)) (VP (VBP grow) (PP (IN toward) (NP (NN sunlight)))))))) (. .)))