Starfish do not have a brain.
yes
The tube feet of a sea star move through a hydraulic system known as the water vascular system. This system uses water pressure to control the extension and retraction of the tube feet, allowing the sea star to move and manipulate objects.
The water vascular system of a sea star can generate enough force to extend and retract tube feet for movement and feeding. The force is sufficient for the sea star to grip onto prey items and surfaces. The exact amount of force generated may vary depending on the species of sea star.
They both use the hydraulic system!
They both use the hydraulic system!
A sea star is called a sea star simply because of where it lives (the sea) and what it looks like (a star), simple!
The central nervous system of a sea star is used to coordinate movement, respond to stimuli, and control behaviors such as feeding and avoiding predators. It consists of a nerve ring around the central disk and radial nerves extending into each arm, allowing the sea star to process information and make decisions.
no, a sea star is a vertebrate!
the sunflower sea star
In sea stars, food moves through a unique digestive system that includes a stomach and a complex network of digestive glands. After capturing prey, the sea star extrudes its stomach out of its body and into the prey to digest it externally. The digested nutrients are then absorbed into the sea star's body through the stomach and transported to other parts via the coelomic fluid. This efficient system allows sea stars to feed on a variety of marine organisms, primarily bivalves.
the answer is star of the sea!! the answer is star of the sea!!
There are over 6000 types of echinoderms. A few examples are the banded-arm brittle star, common sea urchin, cushion sea star, etc. I you were looking for types of echinoderms, they areSea star or starfish (Asteroidea)Brittle stars, basket stars, serpent stars (Ophiuroidea)Sea urchins, heart urchins and sand dollars (Echinoidea)Holothurians or sea cucumbers (Holothuroidea)Feather stars and sea lilies (Crinoidea).