Bony

... options were: a. Fish I is marine while Fish II is freshwater fish b. Fish I is bottom dwelling while Fish II is surface dwelling c. Fish I is a bony fish while Fish II is a cartilagenous fish d. Fish I has a small body mass while Fish II has a large body mass I chose d. but the answer was b. ...

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... which we descended. But there are physical explanations for this: boneless, soft-bodied organisms are much less likely to fossilize as well as bony organisms would. This DOES create blanks in phylogeny, or the evolutionary relationships between species, but when we look at the wide array of ...

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... 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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