NEET 2026 (Phase 1) · BiologyCoelomPrevious Year Question
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.
Answer: (B) B and E only. Statement B is wrong because adult echinoderms are radially symmetrical (only the larvae are bilaterally symmetrical), and statement E is wrong because reptiles are poikilotherms (cold-blooded) and cannot maintain a constant body temperature.
- A.A and C only
- B.B and E only✓
- C.C and D only
- D.B and D only
Correct Answer
(B) B and E only
Solution & Explanation
Statement B is wrong because adult echinoderms are radially symmetrical (only the larvae are bilaterally symmetrical), and statement E is wrong because reptiles are poikilotherms (cold-blooded) and cannot maintain a constant body temperature. Statements A, C and D are all correct, so the incorrect set is B and E, option (b). NCERT Reference: Page 45, line 14-15
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