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Chapter 30 Fishes

Horizontales
Fin used for defense.
Class of jawless fishes
Class of cartilage fishes
Class of bony fishes
Sharks scales
Covers and protects the gills
Develops into the spinal cord
With backbone
Also known as the caudal fin
Used for buoyancy in fishes
Attaches to host and sucks body fluids
Small fishlike creature that lives on the sandy bottom of oceans
Develops into backbone
Verticales
Develops into gills
Jawless fish that produces slime for defense.
In the brain used to interpret smells
Filter feeders also called sea squirts
Used to breath with
Primitive fish with more limb like than fin like appendages
Sensory pores on fishes side, senses water vibrations
Used to remove nitrogen waste from sharks blood
Fin us to slow or stop fish
Fin under tail
Fin that pushes fish forward
Filters and removes waste from the blood
Fin used for navigating