( ( ( MICROBIOLOGY -- ) ( ( ( ( ( ( ( ( ( ( ( ( ( metabolic pathways ) , ) ( pure ( culture ( ( techniques and ) limitations ) ) ) ) , ) aerobes ) , ) anaerobes ) , ) autotrophs ) , ) ( ( heterotrophs , ) chemoautotrophs ) ) , ) ( ( Bergey 's ) classification ) ) ) . )
(ROOT (NP (NP (NNP MICROBIOLOGY)) (: --) (NP (NP (JJ metabolic) (NNS pathways)) (, ,) (NP (JJ pure) (NN culture) (NNS techniques) (CC and) (NNS limitations)) (, ,) (NP (NNS aerobes)) (, ,) (NP (NNS anaerobes)) (, ,) (NP (NNS autotrophs)) (, ,) (NP (NP (NNS heterotrophs)) (, ,) (NP (NNS chemoautotrophs))) (, ,) (NP (NP (NNP Bergey) (POS 's)) (NN classification))) (. .)))
MICROBIOLOGY -- metabolic pathways, pure culture techniques and limitations, aerobes, anaerobes, autotrophs, heterotrophs, chemoautotrophs, Bergey's classification.
(ROOT (S (NP (NNS Photoautotrophs) (CC and) (NNS chemoautotrophs)) (VP (VBP are) (NP (NP (CD two) (JJ basic) (NNS types)) (PP (IN of) (NP (NNS autotrophs))))) (. .)))