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Fish – Basic Facts

Fish – Basic Facts. Fish live in nearly every single aquatic habitat imaginable Fish are aquatic vertebrates characterized by fins, scales, and gills Fish were the first vertebrates to evolve. Fish bring in Oxygen rich water through gills and remove oxygen poor water through gill slits

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Fish – Basic Facts

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  1. Fish – Basic Facts • Fish live in nearly every single aquatic habitat imaginable • Fish are aquatic vertebrates characterized by fins, scales, and gills • Fish were the first vertebrates to evolve. • Fish bring in Oxygen rich water through gills and remove oxygen poor water through gill slits • Closed circulatory system • Four chambered heart • Swim bladder controls buoyancy • Most are egg laying • Most move by contracting opposite muscles (S Shaped)

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