( ( As amniotes ) ( , ( ( reptile eggs ) ( ( are ( surrounded ( by ( ( membranes ( for ( ( protection and ) transport ) ) ) ( that ( adapt ( them ( to ( reproduction ( on ( dry land ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN As) (NP (NNS amniotes))) (, ,) (NP (JJ reptile) (NNS eggs)) (VP (VBP are) (VP (VBN surrounded) (PP (IN by) (NP (NP (NNS membranes)) (PP (IN for) (NP (NN protection) (CC and) (NN transport))) (SBAR (WHNP (WDT that)) (S (VP (VBP adapt) (S (NP (PRP them)) (VP (TO to) (VP (VB reproduction) (PP (IN on) (NP (JJ dry) (NN land))))))))))))) (. .)))
As amniotes, reptile eggs are surrounded by membranes for protection and transport that adapt them to reproduction on dry land.
(ROOT (S (SBAR (IN Because) (S (NP (PRP$ their) (NNS embryos)) (VP (VBP are) (VP (VBN surrounded) (PP (IN by) (NP (DT a) (JJ thin) (NN membrane))))))) (, ,) (NP (NNS reptiles)) (VP (VBP are) (VP (VBN considered) (NP (NNS amniotes)))) (. .)))