AIIMS 2002
- Exam
- AIIMS
- Year
- 2002
- Subject
- Botany
- Chapter
- Animal Kingdom
AIIMS 2002 · Botany · Animal Kingdom
Ambulacral grooves are absent in the living forms of the Class
Ambulacral grooves are absent in the living forms of the Class
Options
- ACrinoidea
- BAsteroidea
- COphiuroidea
- DEchinodermata.
Correct answer
C. Ophiuroidea
Step-by-step solution
Ambulacral grooves are found in the arms of echinoderms lined by tube feet. Ambulacral grooves are absent in Ophiuroidea which are covered by ossicles.