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.
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
It's a sun star, a type of sea star.
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.
-The Angler Fish -The Gulper Eel -The Vampire Squid -The Sea Cucumber -Tube worms -Pompey worms -Serrate octopus -Dumbo octopus -Telescope octopus -Giant spider crab -Viper fish -biscuit star -comb jellyfish -luminescence star -Remipedia -ping pong sea sponge -deep sea urchin
agarose is made of from a type of sea weads.
Sea star
echinoderms.
It's a sun star, a type of sea star.
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.
Microlethical, spherical shaped egg
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