( ( ( Respiratory system ) ( There ( are ( ( no ( specialized ( respiratory structures ) ) ) ( in ( earthworms ( and ( gas exchange ) ) ) ) ) ) ) ) ( ( ( takes place ) ( across ( ( the ( general epidermis ) ) ( which ( can ( be ( ( moistened ( if ( necessary ( with fluid ) ) ) ) ( from ( the ( coelomic pores ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Respiratory) (NN system)) (SBAR (S (NP (EX There)) (VP (VBP are) (NP (NP (DT no) (VBN specialized) (JJ respiratory) (NNS structures)) (PP (IN in) (NP (NNS earthworms) (CC and) (NN gas) (NN exchange)))))))) (VP (VBZ takes) (NP (NN place)) (PP (IN across) (NP (NP (DT the) (JJ general) (NNS epidermis)) (SBAR (WHNP (WDT which)) (S (VP (MD can) (VP (VB be) (VP (VBN moistened) (ADJP (IN if) (JJ necessary) (PP (IN with) (ADJP (JJ fluid)))) (PP (IN from) (NP (DT the) (JJ coelomic) (NN pores))))))))))) (. .)))
Respiratory system There are no specialized respiratory structures in earthworms and gas exchange takes place across the general epidermis which can be moistened if necessary with fluid from the coelomic pores.
(ROOT (S (NP (NP (DT The) (NNS epidermis)) (PP (IN of) (NP (DT a) (NN leaf)))) (VP (VBZ contains) (NP (NP (NNS openings)) (VP (VBN known) (PP (IN as) (NP (NP (NN stomata)) (, ,) (SBAR (WHPP (IN through) (WHNP (WDT which))) (S (NP (NP (DT the) (NN exchange)) (PP (IN of) (NP (NNS gases)))) (VP (VBZ takes) (NP (NN place)))))))))) (. .)))