Marine Biology Module #6
Terms
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- subphylum vertabrata
- contains animals with a backbone and a spinal chord that protects the backbone
- demersal
- fishes that live on the bottom of the ocean
- anadromous
- a life cycle in which creatures are hatched in fresh water, migrate to salt water when adults, and return to fresh water in order to reproduce
- class agnatha
- contains animals sometimes called jawless fish (hagfishes and lampreys)
- class osteichtyes
- contains bony fishes
- myomeres
- bands of muscle along the sides of fishes used for locomotion
- chromatophores
- surface pigment cells that expand and contract to produce various colors
- osteocytes and osteoblasts
- bone-producing cells
- gill rakers
- projections along the inner surface of fishes' gills used for filter-feeding
- class chondrichthyes
- contains sharks, rays, and skates