Cards (11)

  • cartilaginous fishes
    fish with skeletons made of cartilage
  • jawless fish

    parasitic and lack many vertebrate features
  • bony fishes
    spine and soft rays support membranous fins. 95% of fishes
  • fins
    used by fish to steer, maintain stability, and move
  • scales

    for protection
  • mucus
    a layer found in bony fishes, reduces drag and protection from parasites
  • countershading

    fish have darker color on upper body and lighter on lower for camouflage
  • lateral line
    dark line composed of sensory organs
  • fish have closed circulatory system
  • fish have 2 chambered heart
    • atrium
    • ventricle
  • swim bladder
    fills with air to keep fish afloat