( What ( ( ( are ( ( the implications ) ( of ( ( the ( low yields ) ) ( of energy ) ) ) ) ) ( ( obtained ( from ( ( anaerobic respiration ) ( in regard ) ) ) ) ( to ( ( rates ( and ( standing populations ) ) ) ( of microorganisms ) ) ) ) ) . ) )
(ROOT (SBARQ (WHNP (WP What)) (SQ (VBP are) (NP (NP (DT the) (NNS implications)) (PP (IN of) (NP (NP (DT the) (JJ low) (NNS yields)) (PP (IN of) (NP (NN energy)))))) (VP (VBN obtained) (PP (IN from) (NP (NP (JJ anaerobic) (NN respiration)) (PP (IN in) (NP (NN regard))))) (PP (TO to) (NP (NP (NNS rates) (CC and) (NN standing) (NNS populations)) (PP (IN of) (NP (NNS microorganisms))))))) (. .)))
What are the implications of the low yields of energy obtained from anaerobic respiration in regard to rates and standing populations of microorganisms.
(ROOT (S (NP (JJ Anaerobic) (NN respiration)) (VP (VBZ occurs) (SBAR (IN if) (S (NP (NN oxygen)) (VP (MD can) (RB not) (VP (VB be) (VP (VBN obtained) (PP (IN at) (NP (DT a) (JJ sufficient) (NN rate))))))))) (. .)))