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