NEET Zoology Non-Chordates MCQ Question
Which of the following statements about non-chordates is correct?
All coelomates possess a true coelom lined with mesoderm.
Pseudocoelomates have a body cavity fully lined by mesoderm.
Acoelomates are characterized by the presence of a body cavity.
Echinoderms exhibit bilateral symmetry throughout their life cycle.
Correct Answer
Detailed Explanation
Coelomates, as mentioned, have a true coelom lined by mesoderm, while pseudocoelomates have a body cavity not fully lined by mesoderm, and acoelomates lack a body cavity altogether. Echinoderms are radially symmetrical as adults but bilaterally symmetrical as larvae.
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