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
a problem for a sea star is it losing an arm- solution : it can grow it back
regeneration
It will grow back a new one
There are over 6000 types of echinoderms. A few examples are the banded-arm brittle star, common sea urchin, cushion sea star, etc. I you were looking for types of echinoderms, they areSea star or starfish (Asteroidea)Brittle stars, basket stars, serpent stars (Ophiuroidea)Sea urchins, heart urchins and sand dollars (Echinoidea)Holothurians or sea cucumbers (Holothuroidea)Feather stars and sea lilies (Crinoidea).
Thromidia catalai is the heavyest known sea star (although other sea stars can grown larger in terms of diameter/arm span.It weighs over 6kg, and can have a span of up to 63cm.It has no common name, but due to its appearance, it is often nicknamed "fat star".
Black Sea arm for crossword puzzle is the Sea of Azov. Sea of Azov
A sea star can grow a new one, because it's attached to the center disk!
The function of a rocker arm is to control a valve in an engine. The rocker arm is a lever that rocks.
The females lay eggs in the water and let them float there, then males can come along and let sperms into the water and let them float there. Then they can mix and the egg becomes fertilized and a baby starfish is made. OR a female will lay her eggs and let them float and then another female can come and lay her eggs and they can fertilze each other making a baby starfish. That is not correct... Sea stars reproduce asexually using the method of fragmentation, when the sea stars arm falls off and makes a new individual sea star that is genetically identical to the parrent.. xAdubz
A sea star is called a sea star simply because of where it lives (the sea) and what it looks like (a star), simple!
The humerous is the upper arm bone. Its primary function is to support the arm muscles and allow the arm to move.
Giant Sea Star (Pisaster giganteus) a/k/a Knobby Sea Star. Detail of the arm tip showing the optic cushion or "eye spot". Most sea stars have such a cluster of red-pigmented, light-sensitive cells at the tips of the arms. These optic structures do not actually form an image in the manner of a mammalian eye, but do allow the sea star to detect light and sense changes in its environment. Pillar Point.