Some in the Precambrian Super Eon, but mostly hard parts came along in the Cambrian period at about 540 mya (Million Years Ago)
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.
Endoskeletons can be relatively heavy, which may limit mobility compared to exoskeletons. They also require a more complex system of muscles and joints to function, potentially making movement less efficient. Additionally, endoskeletons are more vulnerable to damage from external forces, as they are not as protective as external structures. Lastly, growth can pose challenges, as organisms must often undergo molting or significant changes to accommodate their increasing size.
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.
No, organisms are not always beneficial. Some organisms can be harmful or have neutral effects on their environment and other species. It depends on the specific interactions and relationships between organisms in their ecosystem.
Some phyla that contain organisms with endoskeletons include Echinodermata (sea stars, sea urchins), Chordata (vertebrates like humans, birds, fish), and Porifera (sponges). These endoskeletons provide support and protection for the organisms.
A sponge is an organism that has specific characteristics. It is a group of invertebrates which are organisms without "backbones" or endoskeletons.
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
Cows have endoskeletons. An endoskeleton is found inside the body and is composed of mineralized tissues. Some sponges and symmetrical marine animals also have endoskeletons.
Yes
A Whale is an Endoskeleton creatures. Endoskeletons - are skeletons that are inside the body and cannot be seen. Humans, Cats and Dogs Have Endoskeletons. All mammals have Endoskeletons.