A sea star has an exoskeleton, not a back bone. Which makes it an invertebrate.
Sea star (or starfish) are members of phylumechinoderms, belonging to the class Asteroidea. They do not have a spine, so are invertebrates.
no, a sea star is a vertebrate!
Invertebrates
A sea otter is a mammal and has a spine, so is a vertebrate.
it has no bones
yes,it is vertebrate.
The star nosed mole is a mammal and thus a vertebrate.
a brittle star is an invertabrate
yes they are
it has no bones
Its not.
nope.its a vertebrate.
The sea otter is a mammal and is a vertebrate.