QUIZ 1. Which type of microbe does not belong to any of the domains of life? a. Bacterium b. Helminth c. Parasite d. Virus Answer: d. Viruses do not belong to any of the domains of life, mostly because they are completely acellular. Some researchers do not believe that viruses are actually living things. 2. Which type of bacterial species is curved in shape? a. Vibrio b. Bacillus c. Coccus d. Spirochete Answer: a. The Vibrio organism is considered a curved-shaped bacterium. 3. What pathogen in humans is always multicellular? a. Fungi b. Protozoa c. Helminths d. Bacteria Answer: c. Helminths are always multicellular and are rarely microscopic; however, their eggs and larvae are generally microscopic in nature.
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