Bony

... up of keretin the same stuff that makes up hair and fingernails While antlers are essentially bone. A few exceptions to the rule: Rhino's have NO bony core in the center or their "horn". It is %100 Keratin. Also, true horns do not branch but the American Pronghorn Atelope has forked ...

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... is found, something - no. Without skeleton residents Venda left very few traces in the shales, which are difficult to study and few of them. Bony skeletons and shells came later. Ichthyostega and the latimeria, as it now turns out, lived simultaneously in the same waters. But in this case, ...

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... to be a little more exact. That means that it's skeleton is composed mainly of guess what? Cartilage. That's distinct from other fishes which have bony skeletons, or don't have jaws. Go here if you want more detail: http://en.wikipedia.org/wiki/Template:Basic_fish_taxonomy A whale, on the other ...

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Kids do have kneecaps already at birth. However, they aren't always visible on x-ray, because they haven't ossified (become bony) yet. So in a way you are correct, but the kneecaps are there. The ossification process starts somewhere between 3 and 5 years of age depending on gender and ...

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... becomes too heavy for the internal muscles to lift . (.....5....) . in contrast , vertebrates have an endoskeleton . which is an internal set of bony supporting structures . (........6......) . Each bone of the skeleton has muscles fixed to its surface toward the end of the bones . (.............7.......) ...

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