Fish

lateral line

detects vibrations

operculum

covers the gills

ectothermal

cold-blooded

anal

fin located near the fish's anus

swim bladder

helps fish maintain bouyancy

cartilage

What a shark's skeleton is made of

fry

a baby fish

lamprey

bloddsucking fish with no jaw

ocean

body of water where most of the world's fish live

scales

can be used to determine fishes age

dorsal

fin on top of a fish

pectoral

fins on side of the fish near shoulder area

ray

fish related to a shark

animalia

kingdom to which all fish belong

aquatic

means to live in the water

two

number of chambers in a fish's heart

gills

organs that fish use for respiration

hagfish

related to a lamprey

backwards

sharks cannot swim in this direction

caudal

tail fin of a fish

salmon

these fish swim miles upstream to spawn

double loop circulation

type of circulation frogs have (unlike fish)

coelacanth

type of lobe finned fish thought to be extinct