( Physiology ( ( ( ( is ( ( the study ) ( of function ) ) ) , ) ( specifically ( how ( ( ( ( different ( cells ( , ( ( tissues and ) organs ) ) ) ) and ) ( organ systems ) ) ( work ( to ( maintain life ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Physiology)) (VP (VBZ is) (NP (NP (DT the) (NN study)) (PP (IN of) (NP (NN function)))) (, ,) (SBAR (ADVP (RB specifically)) (WHADVP (WRB how)) (S (NP (NP (JJ different) (NNS cells) (, ,) (NNS tissues) (CC and) (NNS organs)) (CC and) (NP (NN organ) (NNS systems))) (VP (VBP work) (S (VP (TO to) (VP (VB maintain) (NP (NN life))))))))) (. .)))
Physiology is the study of function, specifically how different cells, tissues and organs and organ systems work to maintain life.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NP (JJ different) (NNS types)) (PP (IN of) (NP (NNS tissues)))) (VP (VBP work) (ADVP (RB together)) (S (VP (TO to) (VP (VB perform) (NP (DT a) (JJ unique) (NN function)))))))) (, ,) (NP (PRP they)) (VP (VBP form) (NP (NN organ))) (. .)))