( ( Tempo ( of ( speciation ( Gradual ( vs ( punctuated ( speciation ( Gradual speciation ) ) ) ) ) ) ) ) ( ( occurs ( when ( ( ( microevolution and ) ( ( the accumulation ) ( of ( small changes ) ) ) ) ( leads ( to ( big changes ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Tempo)) (PP (IN of) (NP (JJ speciation) (NNP Gradual) (NN vs) (NN punctuated) (NN speciation) (JJ Gradual) (NNS speciation)))) (VP (VBZ occurs) (SBAR (WHADVP (WRB when)) (S (NP (NP (NN microevolution)) (CC and) (NP (NP (DT the) (NN accumulation)) (PP (IN of) (NP (JJ small) (NNS changes))))) (VP (VBZ leads) (PP (TO to) (NP (JJ big) (NNS changes))))))) (. .)))
Tempo of speciation Gradual vs punctuated speciation Gradual speciation occurs when microevolution and the accumulation of small changes leads to big changes.
(ROOT (S (NP (NNP Microevolution)) (VP (VBZ is) (NP (NP (DT the) (NN process)) (SBAR (WHPP (IN by) (WHNP (WDT which))) (S (NP (NNS organisms)) (VP (VBP change) (PP (IN in) (NP (NP (JJ small) (NNS ways)) (PP (IN over) (NP (NN time)))))))))) (. .)))