Multiple choice

Which of the following is not a characteristic of nonchordates?

  1. Notochord is absent in them.

  2. The central nervous system of nonchordates is hollow and dorsal.

  3. Their circulatory system is of open or closed type.

  4. Pharyngeal gill slits are absent in them.

  5. Post-anal tail is not present in nonchordates.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option.

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