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Topic: Chordates up to classes· Diversity in Living World

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 gillslits.D. Presence of dorsal heartE. Triploblastic pseudoc…

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 gillslits.

D. Presence of dorsal heart

E. Triploblastic pseudocoelomate animals.

Choose the correct answer from the options given below:

1. C, D and E only

2. A, C and D only

3. B and C only

4. B, D and E only

1 answer

Best answer

Answer: 3. B and C only

Key idea: Recall the basic features of chordates.

  • A is wrong: the nerve cord is dorsal, hollow and single.
  • B is correct: chordates have a closed circulatory system.
  • C is correct: paired pharyngeal gill slits are present.
  • D is wrong: the heart is ventral.
  • E is wrong: chordates are coelomates, not pseudocoelomates.

B and C only is option 3.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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