Echinoderms have internal skeletons.
A hydrostatic skeleton is a type of skeleton many animals in the animal kingdom have.
They have a type of skeleton called a hydrostatic skeleton. This type of skeleton is a fluid filled sac which is surrounded by muscles.
Internal Skeleton
a sponge skeleton
internal skeleton
it doesn't have a skeleton
worm
The appendicular skeleton is attached to the axial skeleton.
There are 62,305 different type of skeleton.
A liver fluke is an invertebrate, which means it has no skeleton.
The hydra does in fact have a skeleton. The type of skeleton it has is a hydrostatic skeleton where a coelom, or cavity filled with fluid, is surrounded by skeletal muscles.
A rodent skeleton is not different from a vole skeleton. A vole skeleton is just one of many types of rodent skeleton. That is because voles are a type of rodent.