Question

The locomotory organs of Echinodermata are

• A. Tube feet
• B. Muscular feet
• C. Jointed legs
• D. Parapodia

Answer 1

The correct option is A Tube feet

Echinoderms have tube feet that are long and tubular. The bottom side of the feet have developed with the suction type of adhesive pads. These pads produce a vacuum or hydrostatic pressure. This pressure helps to produce contractions. These pads are sticky due to the secretion of mucus that help in adhesion. This form of modified feet helps in movement underwater. The locomotory organs in most of the echinoderms are tube feet.

Thus, the correct answer is option A.