system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The egg which of the following parasites consist of polar filaments arising from either end of the ambrophore?
assistant
The correct answer is  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.