Q12 / 180 · AIIMS 2002 · Botany

Ambulacral grooves are absent in the living forms of the Class

A
Crinoidea
B
Asteroidea
Correct answer
C
Ophiuroidea
D
Echinodermata.

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.

Hence, the correct answer is option: 'C'.

More Animal Kingdom Questions

Which of the following options have features corresponding to the given animals? Holothuria, Asterias, Antedon, Echinus26 May, 2019Phylum Echinodermata
Class Crustacea has following features :2001Phylum Echinodermata
Choose the correct option.25 May, 2019Euchordata
Assertion : Anopheles, Limulus, prawn and scorpion are arthropods. Reason : All have jointed appendages and chitinous exoskeleton.25 May, 2019Phylum Arthropoda
Which of the following belongs to Class Osteichthyes?27 May, 2018Subphylum Cephalochordata
Which of the following is correct?26 May, 2018Phylum Chordata