( ( Sexual reproduction ) ( ( is ( considered ( to ( ( have ( ( evolutionary advantages ) ( over ( asexual reproduction ) ) ) ) ( as ( it ( provides ( ( a ( great number ) ) ( of ( variations ( in ( the ( ( offspring ( ( which ( may ( be ( ( selected for ) . ) ) ) ) . ) ) ( _____ 20 ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Sexual) (NN reproduction)) (VP (VBZ is) (VP (VBN considered) (S (VP (TO to) (VP (VB have) (NP (NP (JJ evolutionary) (NNS advantages)) (PP (IN over) (NP (JJ asexual) (NN reproduction)))) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ provides) (NP (NP (DT a) (JJ great) (NN number)) (PP (IN of) (NP (NP (NNS variations)) (PP (IN in) (NP (DT the) (ADJP (JJ offspring) (SBAR (WHNP (WDT which)) (S (VP (MD may) (VP (VB be) (VP (VBN selected) (PP (IN for)) (. .))))) (. .))) (QP (CD _____) (CD 20))))))))))))))) (. .)))
Sexual reproduction is considered to have evolutionary advantages over asexual reproduction as it provides a great number of variations in the offspring which may be selected for.. _____ 20.
(ROOT (S (NP (NP (DT The) (JJ primary) (NN advantage)) (PP (IN of) (NP (NP (JJ sexual) (NN reproduction)) (SBAR (WHADVP (WRB when)) (S (VP (VBN compared) (PP (TO to) (NP (JJ asexual) (NN reproduction))))))))) (VP (VBZ is) (SBAR (IN that) (S (NP (EX there)) (VP (VBZ is) (NP (NP (JJR greater) (JJ genetic) (NN variety)) (PP (IN in) (NP (NN offspring)))))))) (. .)))