[Campbell Biology P.662] Which of the following statements about the genus Entamoeba is true... | Practice Question

Which of the following statements about the genus Entamoeba is true, according to the provided text?

  • A: All species of Entamoeba are symbiotic parasites that infect humans.
  • B: *E. histolytica* is the only species in the genus Entamoeba that is known to be pathogenic to humans.
  • C: Amoebic dysentery caused by *Entamoeba* is primarily spread through airborne droplets.
  • D: *Entamoeba* infections are the leading cause of death due to eukaryotic parasites worldwide.

Explanation

The text explicitly states: 'Humans are host to at least six species of Entamoeba, but only one, E. histolytica , is known to be pathogenic.' This directly confirms option B. Other options contain inaccuracies regarding spread, pathogenicity, or ranking of cause of death.