Vertebrates, Fishes, and Amphibians

Flashcards about key vocabulary terms relating to vertebrates, fish, and amphibians.

Notochord

A flexible rod that supports a chordate's back

Vertebrae

Animals that have a backbone that is part of an internal skeleton

Characteristics of Fish

Vertebrates, live in water, obtain air through gills, have gills and are ectotherms.

Jawless Fish

They have no jaws and no scales.

Cartilaginous Fishes

Jaws, scales, and skeletons made of cartilage

Bony Fishes

Jaws, scales, a pocket on each side of the head that holds the gills, and a skeleton of hard bones.

Cartilage

A tissue that is more flexible than bone

Swim Bladder

Helps stabilize the fish at different depths of water.

Life Cycle of an Amphibian

Eggs are fertilized, swimming tadpoles hatch, hind legs develop, front legs develop, and the tail is developed

Ventricle

A place where all the blood meets

Habitat

A type of place where animals live

Exoskeleton

A skeleton that supports them