NEET 2019 · BiologySegmentationPrevious Year Question
Consider following features (a) Organ system level of organisation (b) Bilateral symmetry (c) True coelomates with segmentation of body Select the correct option of animal groups which possess all the above characteristics
Answer: (A) Annelida, Arthropoda and Chordata. Annelida, Arthropoda and Chordata are all organ-system level, bilaterally symmetrical, true coelomate and metamerically segmented.
- A.Annelida, Arthropoda and Chordata✓
- B.Annelida, Arthropoda and Mollusca
- C.Arthropoda, Mollusca and Chordata
- D.Annelida, Mollusca and Chordata
Correct Answer
(A) Annelida, Arthropoda and Chordata
Solution & Explanation
Annelida, Arthropoda and Chordata are all organ-system level, bilaterally symmetrical, true coelomate and metamerically segmented. Mollusca, though a true coelomate, is unsegmented, so every option containing Mollusca is incorrect, leaving option (a). NCERT Reference: Page 44, line 39
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