Question

how are these skeletons unique in their chracteristics
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Answer 1

Answer:

The main features of the fish skeletal system are it consists of the vertebral column, jaw, ribs, cranium and intramuscular bones. ... Otoliths are unique characteristics of ear plates of bony fish which helps in steadiness. Gills are the pair of the respiratory organ of fish and some amphibians.

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Answer 2

Answer:

A snake's backbone is made up of many vertebrae attached to ribs. ... Snakes have between 200-400 vertebrae with as many ribs attached! Strong, flexible joints connect the vertebrae and enable the body to make a wide range of movements. In general, the more bones a snake has in its backbone, the more agile it is.

Explanation: