( ( ( Mechanical ( tissues ( and ( vascular tissues ) ) ) ) ( of ( these plants ) ) ) ( ( ( are well ) developed ) . ) )
(ROOT (S (NP (NP (JJ Mechanical) (NNS tissues) (CC and) (NN vascular) (NNS tissues)) (PP (IN of) (NP (DT these) (NNS plants)))) (VP (VBP are) (ADVP (RB well)) (VP (VBN developed))) (. .)))
Mechanical tissues and vascular tissues of these plants are well developed.
(ROOT (S (NP (NP (JJ Present-day) (NNS plants)) (SBAR (WHNP (WDT that)) (S (VP (VBP have) (NP (DT a) (JJ complex) (NN vascular) (NN tissue) (NN system)))))) (VP (VBP are) (VP (VBN called) (NP (NN vasuluar) (NNS plants)))) (. .)))