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The spines on the oral surface are softer and bend to cover the mouth of the starfish as well as the ambulacral grooves. They are basically for protection.
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∙ 15y ago
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What relative of the sea star with long spines?
sea urchin
Are sea star spines movable?
Yes, sea stars are able to move the spines in order to protect themselves as armor.
What relative of the sea star is covered with spines?
I think it is the sea urchin although i might be wrong. - you are correct, a sea urchin is in the Echinodermata phylum as the sea star.
What does a sea star do to protect its self?
A sea star protects itself by using the sharp spines on its back to attack its predator. :-B
How does a sea star defend its self?
A star fish protects its self by these things they have called shape spines
What is an echinoderm that has a large number of spines attached to it?
The sea urchin is a member of the phylum Echinodermataand is covered with spines that may or may not be poisonous.
What is the function of the arm of a sea star?
actually that's a very good question who ever aks this,and the function of the arm of a sea star is just to help the sea star to get food and it hepls to they can walk inside of the ocean
Do sea urchins have spines?
So that the sea urchin can protect itself from is enemies, it also has venomous spines. They also use their spines to kill other sea ceatures, so they can eat them.
Do star fishes have spines?
NO
Does sea cucumber have spines?
They have soft spines that look like warts
What is the function of a pedicellariae on a star fish?
Pedicellariae protect sea urchins by snapping open if something touches its outer surface. If it is touched on its inner surface then it snaps shut. They can be toxic because some have poison glands inside of them. They are attached to the stalks at the base of the spines that cover the sea urchin.
Do sea urchins throw their spines?
So that the sea urchin can protect itself from is enemies, it also has venomous spines. They also use their spines to kill other sea ceatures, so they can eat them.
