Zoology · Animal Kingdom
NEET (UG) 2023 — Question 151
Select the correct statements with reference to chordates. A. Presence of a mid-dorsal, solid and double nerve cord. B. Presence of closed circulatory system. C. Presence of paired pharyngeal gill slits. D. Presence of dorsal heart. E. Triploblastic pseudocoelomate animals. In the light of the above statements, choose the most appropriate answer from the options given below:
- Option A:Correct
B and C only
- Option B:
B, D and E only
- Option C:
C, D and E only
- Option D:
A, C and D only
Answer: A
Step-by-step solution
Chordates are characterized by a dorsal, hollow and single nerve cord, not a solid and double one, so statement A is false. Chordates have a closed circulatory system, so statement B is true. Chordates possess paired pharyngeal gill slits at some stage of life, so statement C is true. Chordates have a ventral heart, not a dorsal heart, so statement D is false. Chordates are triploblastic and coelomate, not pseudocoelomate, so statement E is false. Therefore, only statements B and C are correct, which corresponds to option A.
Answer key and solution verified before publishing.
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- Exam
- NEET (UG) 2023
- Paper
- 2023 paper
- Subject
- Zoology
- Chapter
- Animal Kingdom
- Topic
- Phylum Chordata - CYCLOSTOMATA