( endocrine ( ( ( A system ) ( of ductless ) ) ( ( glands ( ( ( ( secreting hormones ) ( into ( the bloodstream ) ) ) and ) ( targeting ( another ( organ ( to ( produce ( a response ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB endocrine)) (NP (NP (DT A) (NN system)) (PP (IN of) (NP (NNS ductless)))) (VP (VBZ glands) (S (VP (VP (VBG secreting) (NP (NNS hormones)) (PP (IN into) (NP (DT the) (NN bloodstream)))) (CC and) (VP (VBG targeting) (NP (DT another) (NN organ) (S (VP (TO to) (VP (VB produce) (NP (DT a) (NN response)))))))))) (. .)))
endocrine A system of ductless glands secreting hormones into the bloodstream and targeting another organ to produce a response.
(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.