( ( ( All hormones ) ( in ( the ( human body ) ) ) ) ( ( ( ( ( are ( produced ( by endocrine ) ) ) , ) or ) ( ductless glands ) ) . ) )
(ROOT (S (NP (NP (DT All) (NNS hormones)) (PP (IN in) (NP (DT the) (JJ human) (NN body)))) (VP (VP (VBP are) (VP (VBN produced) (PP (IN by) (NP (NN endocrine))))) (, ,) (CC or) (VP (VBZ ductless) (NP (NNS glands)))) (. .)))
All hormones in the human body are produced by endocrine, or ductless glands.
(ROOT (S (NP (JJS Most) (NNS hormones)) (VP (VBP are) (VP (VBN produced) (PP (IN by) (NP (DT the) (JJ endocrine) (NN system))))) (. .)))
Most hormones are produced by the endocrine system.