I... I... I HAD 100 shares in my company, AUTOMATICALLY. Well, the stock was up at $51.00 a share, like the highest ever, but the stupid brokerage and paperwork took so dang long when I sold it that by the time the sale was finalized, the stock was only worth $43.00 a share!!!!
The grooves contain rows of tiny, flexible appendages called tube feet. Sea stars move by means of the tube feet, which are operated by a hydraulic, or water-vascular, system unique to echinoderms. Seawater, circulated through the radiating canals of this system, enters and extends the tube feet.ea star, also called starfish, echinoderm of the class Asteroidae, common in tide pools. Sea stars vary in size from under 1/2 in. (1.3 cm) to over 3 ft (90 cm) in diameter. They are commonly dull shades of yellow or orange, but there are many brightly colored ones as well.
tube feet are most common in echinoderms. this is a phylum which includes animals such as sea stars and sea urchins. echinoderms control much of the movement of their tube â¦ feet using their water vascular system.ube feet function in locomotion and feeding. The tube feet in a sea star are arranged in grooves along the arms. They operate through hydraulic pressure. They are used to pas â¦ s food to the oral mouth at the center, and can attach to surfaces.