( ( ( Gender differences ) ( ( ( in ( physical growth ) ) and ) ( in ( ( the timing ) ( of ( the ( growth spurt ) ) ) ) ) ) ) ( ( contribute ( to ( ( the ( overall difference ) ) ( in ( ( the ( height ( and ( body shapes ) ) ) ) ( of ( ( females and ) males ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Gender) (NNS differences)) (PP (PP (IN in) (NP (JJ physical) (NN growth))) (CC and) (PP (IN in) (NP (NP (DT the) (NN timing)) (PP (IN of) (NP (DT the) (NN growth) (NN spurt))))))) (VP (VBP contribute) (PP (TO to) (NP (NP (DT the) (JJ overall) (NN difference)) (PP (IN in) (NP (NP (DT the) (NN height) (CC and) (NN body) (NNS shapes)) (PP (IN of) (NP (NNS females) (CC and) (NNS males)))))))) (. .)))
Gender differences in physical growth and in the timing of the growth spurt contribute to the overall difference in the height and body shapes of females and males.
(ROOT (S (NP (JJ Female) (NN gender)) (ADVP (RB typically)) (VP (VBZ experiences) (NP (NN growth) (NNS spurts)) (ADVP (RB first))) (. .)))