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NEET 2026
Exam
NEET
Year
2026
Subject
Botany
Chapter
Animal Kingdom

NEET 2026 · Botany · Animal Kingdom

Which of the following is not a characteristic of chordates ?

Which of the following is not a characteristic of chordates ?

Options

  1. APresence of post anal part (tail)
  2. BPresence of notochord
  3. CCentral nervous system is dorsal
  4. DAbsence of gills

Correct answer

D. Absence of gills

Step-by-step solution

The fundamental characteristics of chordates include the presence of a notochord, a dorsal hollow nerve cord, paired pharyngeal gill slits, and a post-anal tail.

The presence of pharyngeal gill slits is a defining feature of chordates at some stage of their life cycle. Therefore, the absence of gills is not a characteristic of chordates.

Answer: Absence of gills
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