The body of a starfish (phylum:echinoderm) has nerves and tissues, while a sponge (porifera) does not. Sponges do not have any appendages, hence they are not motile. Neither sea stars nor sponges have a brain, and the sea stars nervous system is quite simple. Sea stars also have digestive organs, tube feet, and sesory cells that can detect light, gravity, and chemicals. Sponges do not. Thus, Porifera is the lowest phylum in the kingdom of Animalia.
Starfish generally have five 'arms' which radiate outwards from a circular central body. For more information see the related link below.
more complicated the most complicated
Sponges are filter feeders. This means that they pull water through their bodies and eat whatever they can filter out of it. The more folds and spaces that a sponge has, the more spaces there are for it to filter. This is the reason that sponge bodies are full of holes and spaces.
Fish, and all invertebrates, as those have more than four legs or none at all. Only amphibians, reptiles, birds and mammals classify as tetrapods.
they both are sponges! copy this address and paste it in the address bar and you will see the comparison! http://www.glitter-town.com/sponge-bob-myspace-glitter-graphics/sponge-bob-myspace-glitter-graphic-5.gif -spongebob maneac They both live in the ocean and can absorb water,otherwise nothing at all They both live in the ocean and can absorb water,otherwise nothing at all
your body has 650 muscles to be correct and its more complicated yet more efficient than any machine ever built
Some starfish do indeed eat limpet. These starfish tend to be more aggressive feeders and will pry limpets from their rocks.
It is not known which species of starfish has 12 arms. Most starfish have 5 arms but some starfish who have birth defects can have more.
Starfish is a subspecies of dolphin. They also have more teeth and fewer fins.
Most species have five arms. They do not have fins.
more complicated
Kitchen sponge does because the sponge retains more water, which has germs and bacteria. Sponges soak everything up.