( ( An amebocyte ) ( ( specialized ( to ( secrete ( ( ( a spicule ) , ) ( found ( in sponges ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT An) (NN amebocyte)) (VP (VBZ specialized) (S (VP (TO to) (VP (VB secrete) (NP (NP (DT a) (NN spicule)) (, ,) (VP (VBN found) (PP (IN in) (NP (NNS sponges))))))))) (. .)))
An amebocyte specialized to secrete a spicule, found in sponges.
(ROOT (S (NP (NP (DT The) (JJ sharp) (NNS projections)) (SBAR (IN that) (S (NP (JJ specialized) (NNS cells)) (VP (VBP grow))))) (VP (VBP are) (VP (VBN called) (NP (NNS spicules)))) (. .)))