Chordates
Bony
Cartilaginous
Fish Parts
100
The 4 traits one must have during at least one life stage to be considered a chlorate.
What are dorsal nerve chord, notochord, and pharyngeal gill slits?
100
This is used to protect the fish from infection and helps them slip through the water easier.
What is mucus?
100
Some species of shark will do this heinous act in the womb.
What is sibling cannibalization?
100
The name of this tail. 
What is a lunate tail?
200
This nasty jawless fish produces a protective slime.
What is a hagfish?
200
The percent of fishes that are bony.
What is 95%
200
Instead of calcium carbonate bone, shark's cartilaginous skeletons are made of this.
What are cells and protein?
200
The name of this kind of mouth.
What is a Terminal Mouth?
300
The name of this fish.
What is a lamprey?
300
This fish shape reduces drag.
What is fusiform?
300
Sharks use this to sense electrical pulses.
What are Amullae of Lorenzini?
300
The name of this plate.
What is a fish's operculum?
400
These are born as tadpole looking things but dich the 4 traits of a chordate when they reach adulthood.
What are sea squirts (Tunicates)?
400
Besides absorbing oxygen, the gill rakes also do this.
What channel incoming food particles to the esophagus?
400
The name of the shark's scales.
What are dermal denticles?
400
That is a lateral line.
What is used to pick up vibrations in the water over long distances.
500
This creature is not a chordate, but it has a dorsal nerve chord, making scientist believe this phylum is what chordates evolved from.
What is an Acorn worm?
500
Fast fish tend to be this.
What is endothermic?
500
Roughly the amount of shark species there are.
What is 250?
500
This fish organ is what our lungs used to be.
What is the swim bladder?