The methanotrophic microorganisms 21 can cometabilize {HEAD ~ short chain chlorinated hydrocarbons}, such as {TAIL ~ chlorinated alkenes} 
The methanotrophic microorganisms 21 can cometabilize { HEAD ~ short chain chlorinated hydrocarbons } , such as { TAIL ~ chlorinated alkenes }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL