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Fish vocabulary

Vocabulary for the test

Vertebrate An animal that has a backbone
Endotherm An animal that can use body heat from chemical reactions in the body's cells to maintain a constant body temperature
Ectotherm An organism that needs sources of heat outside of itself
Lateral Line A faint line visible on both sides of a fish’s body that runs the length of the body and marks the location of sense organs that detect vibrations in water
Gills A respiratory organ in which oxygen from the water is exchanged with carbon dioxide from the blood
Swim Bladder In bony fishes, a gas-filled sac that is used to control buoyancy; also known as a gas bladder
Operculum A bony structure covering and protecting the gills in fish
Pelvic Fins Add stability and are used for slowing some bony fishes
Pectoral Fins Usually responsible for turning
Dorsal Fins Used for sudden direction changes and as stabilizers
Anal Fins The anal fin adds stability
Caudal Fins Used for propulsion
Fins Used to help fish steer, stop, and balance
Scales Transparent "shingles" that protect a fish's skin. A lubricating mucous helps a fish move through the water
Created by: kathleenquinn