Biology chapter 30-2&3

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List the 3 classes of fish and some examples of each.

Agnatha: lampreys & hagfish. Ostelchthyes: bonyfish. Chondrichthyes: sharks & rays.

All fish have _____ fins and breathe using _____.

Paired; gills

Amphibians start their lives as larvae in the _____, so they breathe using _____.

Water; gills

As adults amphibians live on _____, and breathe using _____.

Land; lungs

Fish, amphibians, and reptiles are all _____, or cold-blooded.


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