If you look at an echinoderm such as a sea urchin or a sand dollar, you will see that the shell is covered in a pattern (of ambulacral and interambulacral areas) with 5 fold symmetry. A starfish has 5 arms and if you imagine a starfish folding its arms up and over its back until the tips meet, then you will see it begins to resemble a sea urchin, the two are clearly related and have a common ancient ancestor.
A starfish can reproduce by mating with another starfish or asexually. Asexual reproduction is usually done after a starfish experiences dismemberment. The dismembered arm can grow into a whole new starfish.
Starfish are carnivores (they eat meat) Like clams, oysters, and fish Sometimes starfish eat other starfish
Starfish can move about.
Starfish can not tolerate a wide range of temperatures. When to cold a starfish will shribble up and shrink until death.
Grasshoppers have an exoskeleton (which is composed of chitin), but starfish do not.
there are cusion starfish, reef starfish, spiny starfish and fire brick starfish in new zealand.
It is called toilet water.
Sure, starfish larvae are planktonic. Adult starfish are not.
Yes they can
a starfish from the carribean?
it is a starfish which is married
Starfish Ancestors
they are starfish that is spiny
sunflower starfish
Sharks, fish and manta rays are predators of the starfish. Larger starfish also prey on and attack smaller starfish.
The starfish that is on his face in the museum.
There are many starfish that are poisonous, such as the Crown of Thorns starfish, the sun star starfish, the spiny sun star starfish and the leather star starfish. Starfish have sharp spikes that are covered with a thin, venomous skin, which can cause swelling, nausea and vomiting once it is on your skin.