( Birds ( ( ( ( reproduce sexually ) and ) ( have ( internal fertilization ) ) ) . ) )
(ROOT (S (NP (NNP Birds)) (VP (VP (VB reproduce) (ADVP (RB sexually))) (CC and) (VP (VB have) (NP (JJ internal) (NN fertilization)))) (. .)))
Birds reproduce sexually and have internal fertilization.
(ROOT (S (NP (NNS Amphibians)) (ADVP (RB sexually)) (VP (VB reproduce) (PP (IN through) (NP (JJ external) (CC or) (JJ internal) (NN fertilization)))) (. .)))