.______ enters the human body as a cyst and develops into a
trophozoite in the small intestine; a severe form of dysentery may occur.
a. Cryptosporidium parvum
b. Entamoeba histolytica
c. Giardia intestinalis
d. Cyclospora cayetanensis
trophozoite in the small intestine; a severe form of dysentery may occur.
a. Cryptosporidium parvum
b. Entamoeba histolytica
c. Giardia intestinalis
d. Cyclospora cayetanensis