This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
The cystic form of all are seen in man except - 
Select and explain. 
A. E. histolytica, B. Giardia, C. Trichomonas, D. Toxoplasma
C: Trichomonas
Answer: C: Trichomonas 
Explanation: 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)