Health Department Medical MCQs NTS Past Papers Operation Theatre Technician (OTT) Surgical Technician A special type of invaginated respiratory system called tracheal system, is present in ____ March 16, 2025 Admin No Comments A: Hydra B: Earthworm C: Cockroach D: Fish Correct Answer: c Short Details: Invaginated Respiratory System is insect’s respiratory system. View More Details >>
