NEET 2020 · BiologyCoelomPrevious Year Question
Bilaterally symmetrical and acoelomate animals are exemplified by
Answer: (D) Platyhelminthes. Platyhelminthes are bilaterally symmetrical, triploblastic and acoelomate (no body cavity).
- A.Aschelminthes
- B.Annelida
- C.Ctenophora
- D.Platyhelminthes✓
Correct Answer
(D) Platyhelminthes
Solution & Explanation
Platyhelminthes are bilaterally symmetrical, triploblastic and acoelomate (no body cavity). Aschelminthes are pseudocoelomate, Annelida are coelomate, and Ctenophora are radially symmetrical, so only Platyhelminthes fit both conditions. NCERT Reference: Page 39, line 21
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