Echinoderms are protected by their spiny skins, but are still preyed upon by some types of shells, fish, crabs, shrimps, among many other.
-Karli Hicks
Echinoderms, such as sea stars and sea urchins, have an endoskeleton made of hard plates called ossicles that lie inside their bodies. Although this endoskeleton is internal, it functions similarly to an exoskeleton by providing support and protection. It allows echinoderms to control their body shape and movement, just like an exoskeleton does for other invertebrates.
Echinoderms use their tube feet by using their water vascular system, so their tube feet are basically controlled by a water pressure system. Tube feet are adapted to a different uses in the groups of echinoderms by being able to use their tube feet to attach to objects as well as for protection and the gaining their nutrients.
Echinoderms, such as seastars and sea urchins, use their tube feet to move. Tube feet have suction discs which allows the echinoderm to crawl or stick to various surfaces.
Respiratory tree is present in echinoderms eg. sea urchin it helps in respiration and protection from predators by evisceration .
Echinoderms are in the Animalia kingdom.
The scientific name for Echinoderms is Echinodermata.
Various animals such as fish, octopuses, and shrimp can use coral reefs for hiding and protection. The intricate structures and numerous crevices of coral reefs provide ideal hiding spots from predators and a safe environment to rest and shelter.
Echinoderms belong to the phylum Echinodermata.
In echinoderms, such as starfish, an ossicle is a bony plate providing structure and protection. It is covered by an epidermis and considered part of the hard endoskeleton where the bony (calcite) plates (ossicles) are connected by collagen fibers.
Ambulacral plates are part of the skeletal system of echinoderms, such as sea urchins and sea stars. They are calcium carbonate plates that make up the tube feet and spines used for movement and protection. These plates are arranged in distinct patterns on the body surface of echinoderms.
As of yet, there is no known species of parasitic echinoderms.
Yes Eventually echinoderms do live in water.