Select the incorrect statements from the following : A. Digestive system in Platyhelminthes is incomplete. B. Bilateral symmetry is a characteristic feature of adult Echinoderms. C. Pseudocoelom is possessed by Aschelminthes. D. Notochord is persistent throughout life in the class Chondrichthyes. E. Members of class Reptilia maintain a constant body temperature. Choose the answer from the options given below :
B. B and E only
Statement A is correct. Platyhelminthes have an incomplete digestive system with a single opening that serves as both mouth and anus. Statement B is incorrect. Adult echinoderms exhibit radial symmetry, whereas their larvae exhibit bilateral symmetry. Statement C is correct. Aschelminthes possess a pseudocoelom, where the body cavity is not lined by mesoderm but is present as scattered pouches. Statement D is correct. In members of the class Chondrichthyes, the notochord is persistent throughout life. Statement E is incorrect. Members of the class Reptilia are poikilotherms (cold-blooded) and cannot maintain a constant body temperature. Therefore, the incorrect statements are B and E. Answer: B and E only
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