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Fun Fish Facts!. Classification. Domain Eukarya Kingdom Animalia Phylum Chordata Class Osteichthyes. Fish Anatomy. Cool Parts!. Swim Bladder – keeps fish at a constant depth Closed circulatory system with a 2-chambered heart - PowerPoint PPT Presentation
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Fun Fish Facts!
ClassificationDomain Eukarya
Kingdom AnimaliaPhylum Chordata
Class Osteichthyes
Fish Anatomy
Cool Parts!Swim Bladder – keeps fish at a constant depth
Closed circulatory system with a 2-chambered heart
Scales – hard, overlapping outer covering for protection
Lateral line – can detect vibrations and pressure
Spawning – external reproduction
Fish Groups – Jawless fishHave no jaws…No scales no paired fins
Examples:Lampreys hagfish
Fish Groups – Cartilage Fish Endoskeletons made of cartilageJawsScalesPaired fins
Examples:SharksRaysSkates
Bony Fish Endoskeletons made of boneJawsPaired finsMost have scales
ExamplesCatfishBasstrout