Answer:
Locomotion: Sea stars move using a water vascular system. Water comes into the system via the madreporite. ... The radial canals carry water to the ampullae and provide suction to the tube feet. The tube feet latch on to surfaces and move in a wave, with one body section attaching to the surfaces as another releases.
Water travels from sieve plate> store canal> ring canal> radial canal> ampullae> tube feet, the tube feet has tiny suctions on the bottom to help it move.
Each sea star had hundreds of tiny feet on the bottom of each ray. ... By moving water from the vascular system into the tiny feet, the sea star can make a foot move by expanding it. This is how sea stars move around. Muscles within the feet are used to retract them.
A sea star moves by regulation of its water vascular system. Tube feet attach to a surface, the sea star moves itself forward. ... Larval echinoderms are bilaterally symmetrical, whereas adult echinoderms are radially symmetrical.
Step-by-step explanation: