The egg which of the following parasites consist of polar filaments arising from either end of the ambrophore?: (A) Taenia saginata, (B) Taenia solium, (C) Echinococcus granulosus, (D) Hymenolepis nana
Answer is D. Ans. is 'd' i.e., H. nana . Egg of H. nana - Spherical or oval - Two distinct membrane, (a) outer membrane (b) inner embryophore - Polar filaments emanating from little knobs at either end of embryophore. - Floats in saturated solution of common salt.