Aക്ലാസ് ഓഫിയൂറോഐഡിയ
Bക്ലാസ് എക്കിനോഐഡിയ
Cക്ലാസ് ഹോളോതുറോഐഡിയ
Dക്ലാസ് ക്രിനോഐഡിയ
Answer:
C. ക്ലാസ് ഹോളോതുറോഐഡിയ
Read Explanation:
സീ cucumber
Their body shape is similar to a cucumber, but they have small tentacle-like tube feet that are used for locomotion and feeding.
One way that sea cucumbers can confuse or harm predators is by propelling their own toxic internal organs from their bodies in the direction of an attacker
The internal skeleton is reduced to numerous distinctively shaped, tiny calcareous structures (ossicles) in the skin.
Most species have five rows of tube feet extending from mouth to anus.
The anal opening is used for both respiration and discharging wastes.
The 10 or more retractile tentacles surrounding the mouth are used for taking food (mud containing nutrients or small aquatic animals) or burrowing.
Locomotion is usually sluglike, although some deepwater species can swim.