From which micro organisms penicillin is being manufactured?
Bacteria
Algae
Fungi
Virus
Name the organisms which is considered as being on the border line between living and non living organisms.
bacteria
virus
fungi
algae
Nodules are responsible for nitrogen fixation. Name the bacteria present inside the root nodules.
Acetobacter
Rhizobium
Clostridium
Nitrobacter
Which convert complex proteins in the dead bodies of plants and animals into ammonia, nitrites and nitrates?
Name the activity by which the leaves of tea, tobacco etc are fermented.
Bacillus megaterium
Psedomonas
Methanogens
Nitrosomonas
Name a nitrogen-fixing bacteria
Bacillus ramosus
Nitro bacter
Name the micro organisms which spread disease.
Parasites
Vectors
Pathogenic
Microbes
Which process is used to preserve milk.
canning
refrigeration
heating
pasteurisation
Name two micro organisms which are used to make antibiotics.
Bacteria, virus
Bacteria, fungi
Virus, fungi
Fungi, algae
Name a good preservative.
Oxalic acid
Vinegar
Butyl alcohol
Methyl alcohol