1.7 Vertebrate Animals: Five Classes Flashcards
Know vertebrate characteristics Understand how different classes or vertebrates show increasing adaptation to dry land Know the 5 classes of vertebrate, examples of each
Chordata
vertebrate phylum
5 classes of vertebrates
fish, amphibians, reptiles, birds, mammals
vertebrates with smooth skin
amphibians
vertebrates w/o smooth skin
fish, reptiles, birds, mammals
vertebrates with scales
fish, reptiles
vertebrates with wet scales
fish
vertebrates with dry scales
reptiles
vertebrates without scales
birds, mammals
vertebrates with feathers
birds
vertebrates without feathers
mammals
fish
scales + mucus streamline swimming
OPERCULUM covers GILLS
Fins - movement, stability
lateral line - sense organs detect vibration
amphibians
nostrils lead to lungs wide mouth (carnivorous) moist skin for gas exchange four limbs (back webbed)- walk and swim
reptiles
dry, scaly skin
tail for swimming
limbs crawl and climb
mouth - teeth, bony ridges
birds
wings
nostrils to lungs
feathers - flight & endothermy (insulation)
beak (no bone/teeth)
mammals
PINNA on ear (sound detection) whiskers sensitive to touch/vibration fur - endothermy mouth - teeth allow different foods penis - internal fertilization