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Vertebrate that lives in water Most have swim bladder to adjust the buoyancy

Characteristics of Fish. Vertebrate that lives in water Most have swim bladder to adjust the buoyancy Paired fins for movement Sc ales for a protective body covering (except the catfish does not have scales). Respiratory System Gills to filter oxygen from the water

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Vertebrate that lives in water Most have swim bladder to adjust the buoyancy

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  1. Characteristics of Fish • Vertebrate that lives in water • Most have swim bladder toadjust the buoyancy • Paired fins for movement • Scales for a protective body covering (except the catfish does not have scales)

  2. Respiratory System • Gills to filter oxygen from the water • Gills and Gill Covering (operculum)

  3. Circulatory System • A single loop- heart to gills tobody to heart… • Heart-one atrium and oneventricle (2 chambers)

  4. Excretion • Salt water fish tend to lose water • Fresh water fish tend to gain water • Homeostasis maintained by the kidneys

  5. Lateral line: sense organ for detecting pressure changes in water- warns of other fish and predators Response

  6. Anatomy • Movement • Paired Fins • Swim Bladder - buoyancy • FINS • Caudal • Dorsal • Anal • Pelvic • Pectoral

  7. 3 Classes of fish • Agnatha-jawless fish • -Skeleton of fibers and • cartilage eye http://dsc.discovery.com/videos/nasty-by-nature-hag-fish-slime.html mouth Gills

  8. 3 Classes of fish • Agnatha-jawless fish • -Skeleton of fibers and cartilage eye mouth Gills

  9. Chondrichthyes- • Cartilaginous fish • sharks, skates, rays • skeleton made of cartilage

  10. Osteichthyes-bony fish • Perch, trout, redfish • Skeleton made of hard, • Calcified tissue called bone

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