Home » Biology mcqs » Approximately _____ species of bacteria are known to cause diseases in humans.Approximately _____ species of bacteria are known to cause diseases in humans. by A. 100 B. 200 C. 300 D. 400 Related Posts:Different species of plants and animals living in…Mycoplasmas have been included in bacteria because:Bacteria which grow either in the presence or…Chlorophyll is a/an _____ molecule?He persisted _____ silly ideas.