No, rats have more bone than cartilage, same as most mammals. However, their skeleton has more flexibility at the joints, particularly the pectoral girdle and rib cage, which allows them to bend and squeeze into spaces that do not look big enough for a rat.
Half And Half Really, The Tail Is Where The Spine Ends So That's Why You Have To Be Careful With It. :)
I think there are more rats in the world than humans.
Yes.
Rats are pests to humanity, but I personally believe that people especially hate rats because they subconsciously identify with them and see them as a reminder of themselves. Not all people hates rats though.
Sharks are a type of cartilaginous fish, that is their skeleton is made of cartilage rather than bone. They belong to the vertebrate subphylum of chondrichthyes.
Cartilage is a far more primitive tissue than bone
Because bone is much harder than cartilage
The opposite of Cartilage Are Ligaments because the cartilage is more flexible than bone.
Bone is far more vascular than cartilage, which means the bone receives nutrients/oxygen/other good stuff more and easier than cartilage. Cartilage has almost no blood supply, which makes healing difficult. Hope that helps..
No, it is not. Bone is strong but it doesn't bend easily. Cartilage is more flexible.
A connective tissue that is more flexible than bone that but that functions within the skeletal system is called cartilage. Cartilage can be found at the tip of your nose, or in your outer ear.
Teeth are teeth, neither cartilage or bone. But more similar to bone than cartilage.
Cartilage
cartilage is more flexible than bone making the shark more hydrodynamic.
Not really. The nails are more of a compact layered skin structure. Cartilage is more for cushioning and lubrication between bones. Some areas do have a rigid structure of cartilage, but it's softer than nail tissue.
It is known as cartilage.
Bones are of course harder