( ( In biology ) ( , ( ( ( the ( two types ) ) ( of reproduction ) ) ( ( are ( ( ( sexual and ) asexual ) reproduction ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NN biology))) (, ,) (NP (NP (DT the) (CD two) (NNS types)) (PP (IN of) (NP (NN reproduction)))) (VP (VBP are) (NP (ADJP (JJ sexual) (CC and) (JJ asexual)) (NN reproduction))) (. .)))
In biology , the two types of reproduction are sexual and asexual reproduction .
(ROOT (S (NP (JJ Sexual) (NN reproduction)) (ADVP (RB usually)) (VP (VBP occur) (PP (IN during) (NP (NP (NNS times)) (PP (IN of) (NP (JJ environmental) (NN stress)))))) (. .)))