( ( Natural selection ) ( ( has ( to ( ( do ( with traits ) ) ( that ( organisms ( clearly ( need ( ( ( to survive ) and ) ( to ( reproduce ( as ( ( males or ) females ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Natural) (NN selection)) (VP (VBZ has) (S (VP (TO to) (VP (VB do) (PP (IN with) (NP (NNS traits))) (SBAR (IN that) (S (NP (NNS organisms)) (ADVP (RB clearly)) (VP (VBP need) (S (VP (VP (TO to) (VP (VB survive))) (CC and) (VP (TO to) (VP (VB reproduce) (PP (IN as) (NP (NNS males) (CC or) (NNS females)))))))))))))) (. .)))
Natural selection has to do with traits that organisms clearly need to survive and to reproduce as males or females.
(ROOT (S (NP (JJ Natural) (NN selection)) (VP (VBZ is) (NP (NP (DT the) (NN process)) (SBAR (WHNP (WDT that)) (S (VP (VBZ allows) (NP (NNS organisms)) (PP (IN with) (NP (JJR better) (NNS traits) (S (VP (TO to) (VP (VB survive) (CC and) (VB produce))))))))))) (. .)))