Exam 17: Domain Kingdombacteria, Domain King-Domarchaea, and Viruses

Decomposed organic matter, especially plant matter, improves soil water holding capacity and soil structure but it isn't a very good fertilizer.

Under ideal conditions of moisture, food supply and temperature a bacterium may undergo fission every

Small circular DNA molecules present in bacteria are called

With the exception of the blue-green bacteria and photochlorobacteria, photosynthetic bacteria use either hydrogen sulfide or hydrogen of organic molecules and carbon dioxide produce carbohydrates without releasing oxygen.

There are no known useful viruses.

The microbiologist known for his research with archaebacteria and for proposing two different kingdoms for bacteria is

The toxins of tetanus and botulism bacteria are considerably more powerful than strychnine.