Examen 4 Chordata Flashcards
What is Superclase Gnathostomata?
Gnathostomata are fish with jaws, generally lacking a notochord in adults, replaced by vertebrae. They include jawed fish, amphibians, reptiles, mammals, and birds.
What characterizes the Clase Chondrichthyes?
Chondrichthyes have a cartilaginous skeleton, no swim bladder or lungs, an intestine in a spiral shape, and claspers.
What are the main features of Actinopterygii?
Actinopterygii are bony fish with scales and covered gills. They possess air sacs for breathing or as swim bladders.
What are the orders of fish mentioned?
The orders include Crosopterigios, Anguilliformes, Salmoniformes, Perciformes, and Ateriniformes.
What are some representative species of Chondrichthyes?
Representatives include sharks, rays, and chimeras.
What is a representative species of Crosopterigios?
Celacanto.
What is a representative species of Anguilliformes?
Anguilas.
What are some representative species of Salmoniformes?
Salmón and truchas.
What are some representative species of Perciformes?
Chopas, atún, and pez espada.
What is a representative species of Ateriniformes?
“Guppies”.
