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.
yes; endoskeleton of vertebrates may be either bone or cartilage
Endoskeletons provide internal support and protection for the body, allowing vertebrates to support greater body mass as they grow. Endoskeletons also enable efficient muscle attachment and movement, which facilitate larger body sizes in vertebrates compared to animals without endoskeletons. Additionally, endoskeletons can continue to grow and adapt as the vertebrate grows, accommodating the increased size of the animal.
Some in the Precambrian Super Eon, but mostly hard parts came along in the Cambrian period at about 540 mya (Million Years Ago)
No, starfish do not have scales. They have a hard, calcareous exoskeleton composed of tiny plates called ossicles. These ossicles provide structure and protection to the starfish's body.
No, auditory ossicles amplify and transmit sound vibrations. The auditory tube is the place where the air pressure in the middle ear can be equalized by bringing air in from or out to the pharynx or throat.
Yes, they , like other echinoderms have mesodermal endoskeletons made up of calcareous ossicles, (bony plates).
Starfish actually have ENDOskeletons, not exoskeletons. They are made up of calcium carbonate compounds called ossicles.
Yes, they have endoskeletons. Seahorses' skeleton are inside their bodies so they would have endoskeletons.
Lions have endoskeletons because they are mammals and we are mammals.
What materials make up the endoskeletons of most vertebrates
we need endoskeletons because they hold us up. if we had an exoskeleton we would be covered by a shell
yes
yes
yes; endoskeleton of vertebrates may be either bone or cartilage
Yes
It is the ossicles :)
In animals with endoskeletons, muscles surround the skeleton. In animals with exoskeletons,the skeleton surrounds the muscles.