Humans have an endoskeleton. Hydrostatic skeletons are found in soft-bodied organisms and ectothermic organisms. Hydrostatic skeletons have an important role locomotion for invertebrates.
spicules
the skeletons can be used as sponges to wash dishes
Hydrostatic, Exoskeletons, and Endoskeletons
No sponges have skeletons.
Some animals have that a hydrostatic skeleton include jellyfish and earthworms. Additional examples include sea urchins and starfish. As a result of their flexibility, hydrostatic skeletons are particularly useful for locomotion.
Yes, they do. Hydrostatic skeletons aren't bone, but fluid-filled cavities surrounded by muscles. Please see the related link for more information.
there are three major types of skeletons: endo, exo, hydrostatic the water strider has an exoskeleton that it regularly "sheds"
Animals that have a hydro-static skeleton have a fluid filled body cavity and a muscular body wall. This skeleton has no hard parts but a animal can squeeze the fluid from one area of the body to another under pressure to give him support.
It depends on what animal you're talking about. Invertebrates like sponges and mollusks and insects have no skeleton at all. Sharks and their relatives have a skeleton made of cartilage. Fish and amphibians have bony skeletons.
The three classes of sponge skeletons are siliceous or glass sponges (Class Hexactinellida), calcareous sponges (Class Calcarea), and sponges with a fibrous protein skeleton (Class Demospongiae). Each class has unique structural characteristics that support the sponge's body.
Sponges or poriferans are animals of the phylum Porifera.Sponges are divided into the following classes mainly according to the compositions of their skeletons:1.Calcarea2.Glass sponges3.Demosponges