Chapter 34B: Vertebrates Cont. Flashcards
What are the 3 clades of Amphibians
Urodela
Anura
Apoda
“Tailed ones”; salamanders
Urodela
“Tail-less ones”; Frogs
Anura
“Legless ones”; Caecilians
Apoda
The retention of larval features when sexually mature, is common in aquatic species (Salamanders)
Paedomorphosis
Powerful hind legs for locomotion on land
Frogs
Legless and nearly blind, resemble earthworms
Caecilians
“Both ways of life”
Amphibian
Frog larvae
Tadpoles
Aquatic herbivores with gills, lateral line system, and a long finned tail
Tadpoles
What 3 things develop during metamorphosis in tadpoles
Legs
Lungs
External ear drums
What 2 structures disappear during metamorphosis in tadpoles
Gills
Lateral line system
What 2 structure in amphibians function in gas exchange
Lungs
Moist skin
___________ is external in most species
Fertilization