What is the difference between cartilage and bone? What is the major difference between the skeleton of a shar
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Car·ti·lage    \n \nA tough, elastic, fibrous connective tissue found in various parts of the body, such as the joints, outer ear, and larynx. A major constituent of the embryonic and young vertebrate skeleton, it is converted largely to bone with maturation.\n\nBone    \n\nThe dense, semirigid, porous, calcified connective tissue forming the major portion of the skeleton of most vertebrates. It consists of a dense organic matrix and an inorganic, mineral component. \n\nThe definitions do not make it entirely clear, but basics first! \n\nCartilage is flexible connective tissue, bone is rigid, inflexible, and calcified. Try bending your upper ear, easy right? That's cartilage. Bone is not flexible (Like your skull.)  \n\nYour question was cut off, did you want to know the difference between a shark skeleton and a human's? A shark skeleton is almost entirely cartilage, a man's is mostly bone, with some connective cartilage.
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I would probably say the atlas. The skull rests directly onto the atlas (the first vertebra of the cervical region), which is a relatively heavy part of the body. The thoracic region bears little weight (articulates with the ribs), the lumber region would be distributed by the pelvic girdle (pain in humans is atributed to the upright nature of the spine, not something that would probably occur to most spp.)and the caudal bones (tail bones) probably wouldnt bear any weight but their own in most spp(and muscle if the animal has a tail). It may depend, however on the species as some animals can bear their entire weight through the tail (monkey with a prehensile tail, macropods etc), but overall, I would probably say the atlas and to a degree the axis as they are constantly bearing the weight of the skull... Hope that helps!
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Hmmmmmmm, interesting question and I'm not an expert on the skeletal system (hoping you meant skeletal vs. sleletal what was written).  If I seriously think about it... "What does the Skeletal system and the joints support as a system".  I would have to think the system is the human body all emcompassing.  If one thinks about it... It supports the entire body structure.  Meaning it gives the human body the ability to stand, to move, and most importantly to 'protect' the internal organs.  If the human body had no bone structure we'd simply be like a spongly rubber thingy.  The joints now give the bone structure the ability to move, to bend.  Gives the structure range of motion.  Curious to see the other anwers to this question. Good Luck and thanks for asking.
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The axial skeleton forms the central axis of the body. It consists of the skull, the vertebral column, the ribs and the sternum or breastbone.  There are 80 bones total in the axial skeleton, and I'm sorry but I'm not going to type them all out for you.  I will, however, provide you with some links so that you can see what they are if you need to know all 80.  They have great diagrams.\n\nhttp://webschoolsolutions.com/patts/systems/skeleton.htm#axial\nhttp://www.botany.uwc.ac.za/sci_ed/grade10/manphys/axial.htm
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The term 'articular cartilage' refers to the cartilage found on the 'articular' surfaces of bones (ie. the surfaces of bones that make a joint). This type of cartilage is referred to as hyaline cartilage and helps to protect the bones from wear and tear. Cartilage is also found between the ribs and their attachments to the sternum (breastbone). This cartilage is elastic and allows for the mobility required of the ribcage when we inhale and exhale. Yet another type of cartilage is found in our ear, and nose. This type of cartilage is more firm and its role is to provide structure.
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Cartilage is a bluish white rubbery tissue found in human beings and animals that have backbones.  It cushions bones against shock and prevents them from rubbing against one another.  It also makes an elastic framework for the ear and respiratory passages.  \n\nBone tissue contains three kinds of cells:  osteocytes, osteoblasts, and osteoclasts.  Osteocytes are cells that lie deeply in a mixture of protein fibers and hard bony tissue.  Osteoblasts form this mixture by laying down new fibers and depositing bone.  Osteoclasts break up the mixture where the bone needs to be remodeled during growth.  About 2/3 of the weight of bony tissue is made up of mineral matter, mostly calcium and phosphorus.  The rest is organic matter, mostly collagen, which is a fibrous protein.
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The bones don't dissappear, they just fuse together.  Adults have a solid skull, but babies have the skull made of several different sections, which makes it slightly flexible, and capable of growth.\n\nThe joints also have a number of "bones" which join other bones.  These are called the Ephyses (sp?) all animals have them, so if you're cooking up like the hank, or the shank of a cow or pig or something, you can see them.  Near the joint, the bone has all these lumps, and if you cook it forever, they'll usually fall off into the separate bones.  \n\nWhen a creature reaches full size, these ephyses fuse to the rest of the bone.  Actually, each one has a different range of time when they fuse, and archaeologists can study which ones have fused to determine the age a skeleton was when the person died.\n\nSo now you know.
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Moves your skeleton apparently. It's job is to move your skeleton. The bones help structure this body so it can sustain movement.
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The biggest difference is the cellulose wall that is present on all plant cells but not on animal cells.
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the bone cells mature through the different types of bone cells before becoming osteocytes.  they form their matrix while they are either osteoblasts or osteoclasts (i think osteoblasts).  when they are stuck in the matrix that they formed, they are mature osteocytes.
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An analogous structure is one that serves the same purpose in two different species, but evolved seperately instead of from the same embryological origin.\nA homologous structure is one that is shared by two species thanks to a common ancestor. \nA homoplastic structure is one that is similiar in two species, but do not share a common ancestor\nyour case would be homologous, as a horse hoof and a bat wing are both esentially modifications of the hand of the animal.
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Structural similarities and differences in helping to identify vertebral skeletons within all vertebral creations would be the main structural difference of skulls. All vertebrate creatures have the similarities as such having segmented spinal columns and joints. Identify the difference between each would be the shape of the skull. If a hiker was walking in the woods and came across a skeleton, the #1 way of identifying if it is of human origin would be to look at the skull. Is it that of a human or a skull of a deer? The later would then be to check out the limbs. But I'd have to say the skull is a good difference but similarity in helping to identify vertebrate skeletons.
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loss of connective tissue between their bones
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very little is different - their are more similarities in fact.. both are made of cells and their cells are very similair until you get to DNA structure.. but even that is somewhat similar.. both have hair, give live birth, produce milk for their young (both are mammals). both have vertibrae, ribs, legs, etc.. similar bones just some are longer than others in different parts of their bodies.. both need to eat and both produce waste.. both value their lives equally\n\nthe few differences are one eats meat the other is strictly vegetarian.  Deer have longer limbs for running and eyes widely spaced to see a preditor and set on a longer neck.. Lions have close set eyes designed for locking onto prey, they have claws for catching as opposed to hoofs for running, and stronger forelimbs - build to kill\ndeer - built to run
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The skeletal system consists of about 206 bones, 26 of which are in each hand and foot, in order for the skeletal system to function and move it requires muscles to contract. Muscles can't push only pull. The muscles that contract and cause the arm or leg to lift are called flexors, the ones that cause it to extend are called extensors. there are five different types of joints, pivot, ball and socket, hinge, gliding, saddle. and a sixth one is called condyloid. the ball and socket joints are found on the shoulder and the hip and provide the body with all types of movement. the saddle joints are only on the base of the thumb. the hinge joint is found in the hip and the elbow. the gliding is found in the ankle. the pivot in only at the top of the neck. the condyloid is found at the base of the palm. fixed joints are ones that are immovable. such as on the cranium. your axial skeleton consists of your cranium,ribs and spine. the appendicular is everything else.\n\nThe skeletal system is the only thing keeping us from being a mass of flesh and muscle. It provides protection and support for our bodies. The bones also contain bone marrow which produces red blood cells. there are two types of bone. the soft inner layer called the spongy bone and the hard compact bone on the outside. hervasian canals in the bones are the ducts for blood vessels and ateries. Osteocytes are trapped bone cells inside the bones. along with the bones there are softer parts of your body that are made of cartilage. Such as your ears and parts of your ribs. the names of the bones are the cranium, spine, coccyx, ribs, humerous, radius and ulna, tibia and fibula, phalanges, tarsals, metatarsals, carpals, and metacarpals, phemur, pelvis, pubis, and the mandible and maxila. the phalanges are in the fingers and toes. the carpals are in the hand along with metacarpals and the tarsals and metatarsals are in the foot. the tibia and fibula are the shin and the radius and ulna make up the forearm. all of these make up the skeletal system and muscular.
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The answer to your question is twofold:\n\nThe bone structure of birds is indeed very different from that of mammals and other non-flying vertebrates. Their bones have a resistant outer layer, but the inner part is mostly hollow and in many cases invaded by the air sacs (part of the respiratory system). Therefore they're structurally different.\n\nOn the other hand, the structure of a bird's skeleton is different from mammals too. They have some fusions of bones that contribute to their stability and rigidity, and their hands have only 3 fingers. Their skull has no sutures, most have a keeled sternum and very different vertebrae.
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Actually, cartilage itself is a type of framework connective tissue.  It serves as a framework for parts that need to be flexible, such as ears.  It also serves as an excellent embryonic skeleton because cartilage can be replaced by bone through cartilage replacement ossification. Ligaments connect bones to bones, not cartilage, and synovial fluid keeps joints from grinding against one another