It is called an endoskeleton.
It is a polyp. Good question!
my doctor called and wants to see me after I had a colposcopy for they took out one polyp why
polyp
POLYP
no,a polyp is a coral egg.and yes coral is a living animal.
no
A sexually immature jellyfish is called an ephyra.It's called a polyp
Polyp
Coral limestone is formed almost completely from the calcitic skeletons of individual coral polyp colonies. Other limestones can be formed from the shells of marine organisms or be formed from the precipitation of calcite from a saturated solution, or a combination of the two. Chemically, they're pretty much the same.
A young immobile jellyfish is called a polyp
Polyp
Nearly all corals and some other cnidarians are attached and are called sessile .