Their skin is covered with bumpy gills.
Respiration in starfish occurs in two locations. The first is through the skin on the ends of its feet. The second is in the gills. The gills are lined with tiny hairs called cilia that filter out unnecessary materials. Oxygen is taken out of the water as the starfish exhales carbon dioxide.
On the surface of a starfish you will find spines used for protection as armor, dermal gills surrounded the spines, a central disk, madreporite, arms and an anus. Underneath tubed feet used for movement, mouth, ambulacral grooves, and its mouth.
star fish using lung to breath
Respiration - The starfish has a water vascular system in which the repiratory exchange between oxygen and carbon dioxide occurs. * The tube feet of the starfish act like gills. The Oxygen enters the water vascular system through the tube feet as the carbon dioxide exits the body. http://intro.bio.umb.edu/111-112/112s99Lect/bodyplans/starfish.html
The "water-vascular" system uses ocean currents to move water throughout their body, and the starfish use their gills to take oxygen from that water as it circulates.
there are cusion starfish, reef starfish, spiny starfish and fire brick starfish in new zealand.
no, because then those gills gills would need gills and they would need gills and so on, so on. They have specialised cells instead.
It is called toilet water.
gills.
Lobsters have gills.
gills are structures in fish for breathing in water while gills chambers are the cavities in which gills are enclosed