Vertebrates - Tetrapods / Amphibia

Question 1

what are the derived characteristics of the superclass tetrapoda?

Answer 1

-4 limbs and feet
-neck
-fusion of pelvic girdle to backbone
-no gills
-ears

Question 2

what animals and characteristics are found in the amphibia class?

Answer 2

-frogs, toads, salamanders, caecilians
-tetrapods
-have an aquatic larval stage and a terrestrial adult stage
-external fertilization
-can breathe through skin