What type of vertebrate can live in two diferent environments: acuatic and terrestrial?
Amphibians
What order belong Salamanders and newts?
Urodela
What order belong frogs and toads?
Anura
This group of vertebrates suffer metamorphosis to become adults.
Amphibians
Aquatic larvae of anmphibians is called?
Tadpole
This order haven't a tail in adult stage.
Anura
What is the name to the structure that allow fishes regulate buoyancy and depth?
Air bladder
What is the name of Fishes without jaws?
Agnathans (Lamprey)
What type of skeleton have Chondrictyes?
Cartilaginous
What type of skeleton have Osteichtyes?
Bony skeleton
What is the name of the sense organ in fishes?
Lateral line
Name of the limbs in fishes
Fins
Shark belongs to this order
Chondrichtyes: cartilaginous fish
Ray´s skin is covered with small, conical, tooth-like scales called...
Dermal denticles
This order of fishes don´t have an air bladder.
Chondrichthyes: cartilaginous fish
Bony fish (Osteichtyes): their gills are protected by a structure know as...
Operculum
