Q. Choose the respiratory organ that are not present in phylum-Arthropoda
A) Tracheal system
B) Gills
C) Water vascular system
D) Book lungs
Explanation
Water vascular system is characteristic of phylum-Echinodermata. Tracheal system, gills, book gills and book lungs are all organs of respiration in animals belonging to phylum-Arthropoda
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.