Question

Which of the following organisms has tube feet as its locomotory organs?

• A. Star fish
• B. Jelly fish
• C. Cuttle fish
• D. Silver fish

Answer 1

The correct option is A Star fish

Phylum Echinodermata includes starfish, sea urchins, brittle stars, sea cucumbers. Phylum Echinodermata is characterized by the following features:

(1) Exclusively marine, free-living; a few pelagic and others permanently attached.

(2) unsegmented, triploblastic, and coelomate animals.

(3) Coelom well developed, lined with ciliated peritoneum; part of the larval coelom becomes a water vascular system with many tube feet serving for locomotion, respiration, and food capturing.

Whereas jelly fish belongs to Cnidaria, silver fish belongs to Arthropoda and cuttle fish belongs to Mollusca

Thus option A is the correct answer.