Simple life cycle is seen in -: (A) Ascaris, (B) T. solium, (C) Toxoplasma, (D) Giardia
Answer is A. Human parasite may complete their life cycle in a single host or more than one host.Some parasites require two or three host to complete their life cycle Ascaris lumbricoides- single host- human being (refer pgno:6 baveja 3 rd edition)