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No, dolphins have a bone-based skeletal system.
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∙ 11y ago
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Do tiger sharks have bones?
No, no shark has bone, all sharks have cartilage instead.
Is a sharks tooth cartilage or bone?
Teeth are teeth, neither cartilage or bone. But more similar to bone than cartilage.
Does all bone tissue start as cartilage?
no
Why is necessary that cartilage is present in all moving joints?
To avoid bone-on-bone friction.
Do great white sharks have backbones?
Sharks are vertebrates (they belong to the phylum Cordata), so they have a spinal chord. However they are also cartilaginous fishes (they belong the the class Chondrichthyes) meaning that their skeleton is made of cartilage instead of bone. They do have a cartilage sheath that surrounds their spinal chord which could be considered a spine. There could be a semantic debate over whether that constitutes a spine, but I for one think it does.
Do frogs have a skeleton made of hard bone or cartilage?
Amphibians are vertebrates, meaning they have a backbone. The skeletal system is mostly made up of bone, but also contains some smaller portions of cartilage. Not all vertebrates have bone skeletons, Chondrichthyes (sharks, rays etc.) have skeletons made up entirely of cartilage. Amphibians however do not.
Is it true that by adulthood all the cartilage in the body has been replaced by bone?
No. Some cartilage remain throughout your life. Ears and nose for instance remains cartilage
What do bones start as?
All bones start as cartilage and over time they turn to bone.
Do Sharks have an exoskeleton?
No. The "bones" of a shark are not really bones at all. They are made of cartilage. Cartilage is found in a human's ears and nose.
What bone lines the superficial regions of all bone spongy or compact?
The make-up of a bone is essentially a joint surface which is covered in a cartilage layer with a spongy tissue underneath the cartilage called the cancellous bone. The compact bone is then the superficial layer with a connective tissue lining the superficial regions called the periosteum.
Can you break your ear cartlidge?
all cartilage can shatter. But dont worry,Theres LESS chance in getting the nose cartilage to shatter.
What is the process of bone formation in the fetus and summarizes the events of bone remodeling throughout life?
Bone starts as cartilage in the fetus. As the fetus takes on the final shape, this cartilage arranges, and enough hardening occurs in the limbs to allow the creature to stand shortly after birth. At that point, all the bones begin to harden, and continues to harden all throughout life. Bones contain a level of cartilage all the way until old age.
