Articles > Quizzes & Surveys > Chordata defnition – quiz Chordata defnition – quiz Quiz Choose the best answer. 1. Which is not a characteristic of a chordate? Bilateral symmetry Pharyngeal pouches Exoskeleton 2. A flexible rod that lies along the anteroposterior axis of all chordates Notochord Pharyngeal pouches Post-anal tail 3. The openings in the pharynx that extends to the outside Notochord Pharyngeal slits Post-anal tail 4. The group of chordates with a spine Urochordata Cephalocordata Vertebrata 5. An example of a chordate Jellyfish Arthropod Tunicate Send Your Results (Optional) Your Name To Email Time is Up!