No starfish, more accurately seastars, do not breathe through gills. Instead: Oxygen enters mainly by diffusion into the tube feet (and thus into the water vascular system) or the papulae, which are little sacs all over the upper surface of the body.
A sea star has a water vascular system that aids in gas exchange for respiration. Water enters through the madreporite and moves through a network of tube feet, facilitating oxygen uptake and carbon dioxide release. This system also helps in distribution of nutrients and waste removal.
http://intro.bio.umb.edu/111-112/112s99Lect/bodyplans/starfish.html
This sight has a simple explanation, although it's not very detailed.
Also, you have your question wrong. Circulation Respiration doesn't exsist. Circulation is a system in your body and respiration is another system in your body. Maybe you are thinking of cellular respiration, that is a process in which you breath out CO2 (carbon Dioxide) and plants produce O2 (Oxygen) with that Carbon Dioxide.
no
Heliaster kubiniji is a species of sea star belonging to the family Heliasteridae. It is found in the eastern Pacific Ocean, primarily along the coast of Mexico. These sea stars are known for their striking coloration and can play a key role in marine ecosystems as predators and scavengers.
Oxygen is typically carried by the red blood cells of most animals. However, the Sea Star has no "blood" and instead uses sea water to transport its nutrients. Salt water transports the oxygen around a sea star's body.
An adult feather star is not sessile. It eventually develops arms and is able to move around. Sea lilies are sessile.
One example: A sea anemone and hermit crab have a mutual relationship. The sea anemone protects the crab and the crab provides food.
it will go down shellfish can not go on land and survive
echinoderms.
describe the skeliton of the star fish
endoskeleton i believe
Sea stars are capable of both types of reproduction.
it really depends on the type of sea star you are wanting to know about. Common ones are about the size of your hand and are fairly light.
A sea star is called a sea star simply because of where it lives (the sea) and what it looks like (a star), simple!
'Fromia monilis' is one type of sea star.
No, sea stars do not have book lungs. They have a water vascular system that helps with their movement, respiration, and feeding. Book lungs are structures found in some spiders and scorpions for breathing.
they dont they use thier legs
they dont they use thier legs
the type of feet used by a sea star is called tube feet
no, a sea star is a vertebrate!