What materials make up the endoskeletons of most vertebrates
cartilage
Bones
Cartilage ! Not silica!!
yes; endoskeleton of vertebrates may be either bone or cartilage
No. Like all vertebrates, snakes have endoskeletons.
An endoskeleton are inner skeletons that are composed of tissue that has become mineralized. Animals with endoskeletons are humans, monkeys, horses, birds, and fish.
exoskeleton refers to a layer mostly composed of kerocyne in the outside of an animal and endo mostly refers to a bone structure. Tigers have endoskeletons Tigers are vertebrates and have an endoskeleton, just like all mammals.
No, they have endoskeletons like any other bird (and you, too).
No, insects are invertebrates because they contain exoskeletons, not endoskeletons. no they are invertebrates
ChordataA. Echinodermata
All whales have internal skeletons and are vertebrates.
bone
The animals that have endoskeletons are all vertebrates like lions, tigers, dogs, cats, etc. The animals that have exoskeletons are crabs, most insects, mullusks, clams, etc.
well theres not a type that ALL animals have, they can either have an ecto or endo