This 74 page, 2009 KTM 125 200 250 300 XC XC-W EXC Owners Manual provides repair and maintenance information for 2009 KTM 125 200 250 300 XC XC-W EXC motorcycles.
bacteria. pl n, sing-rium (-rÉªÉm). 1. (Microbiology) a very large group of microorganisms comprising one of the three domains of living organisms.They are prokaryotic, unicellular, and either free-living in soil or water or parasites of plants or animals.See also prokaryote.oun. 1. bacteria - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants. bacterium.
Bacterial Cell Cytoplasm. Bacteria are one-celled organisms that can cause disease in humans and yet are also essential to our good health because they play an important role in our digestion. Bacteria are prokaryotic cells; they don't have a nucleus enclosed by a membrane.