The cystic form of all are seen in man except -: (A) E. histolytica, (B) Giardia, (C) Trichomonas, (D) Toxoplasma
Answer is C. The trichomonas are flagellate Protozoa with 3 to 5 anterior flagella.These flgellates exist only in the tropozoite phase and there is no cystic phase (refer pgno:33 baveja 3 rd edition)