A common cause of amoebic dysentery is
A. Trichomonas vaginalis.
B. Plasmodium falciparum.
C. Giardia intestinalis.
D. Entamoeba histolytica.
Answer: D
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Humans become infected with the malarial parasite when mosquitoes inject ________ into the bloodstream.
A. sporozoites B. schizonts C. merozoites D. trophozoites
Which common phrase describes topography?
a. “daily bread” b. “the short and skinny” c. “the lay of the land” d. “the whole nine yards”
Four of the five features listed below are related by a
common biome. Select the exception. a. treeless b. permafrost c. short growing season d. found in the rain shadows e. located above the Arctic Circle
Bacteriophages are:a
viruses that infect bacteria. b. plasmids that infect bacteria. c. bacteria that infect other bacteria. d. enzymes that destroy bacteria. e. recombinant organisms