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Sharks belong to the Chondrichthyes class which means that they lack what is called "true bone". Their "skeleton" is made up of cartilage, which is the same as the human ear, so they do not have an actual skeleton.
your nose
cartilage rings give support to trachea to open all the time
The cartilage rings in the throat prevent the trachea from collapsing.
yes because they have gills and they have Cartilaginous Skeleton. Instead, they have skeletons made of cartilage, a flexible and lighter tissue which is also consider that give sharks the speed underwater and the flexibility they need to be their ruthless predators they are.
The body's structure is provided by the skeletal system (skeleton), which includes bones, cartilage, and connecting tissues. The bones hold up the body and give it structure - without bones, higher animals would not be able to exist.
a skeleton dog
The axial skeleton
If we didn't have bones we we be a glob of guk and we could get hurt a lot more by a stick or something going threw our body
The beautiful spring.
To spring into the air/ a tiger ready to spring
Cartilage