This phylum consists of jellies and sea anenomes
What is the phylum porifera
They have adapted to life on land but they remain dependent on water
What are amphibians?
Special structures in birds bones that aid in breathing
Air sacks
These phylum consists of snails and squid and clams
What is Mollusca
Number of chambers in a bird's heart and reason
4 they use a lot of energy (endothermic)
This class includes animals with three body segments and six jointed legs
What is insecta
These feathers are asymetrical
What are flight feathers
This order has scales and a 4 chambered heart
What is Crocodilia?
Includes reptiles and birds
Sauropsida
Two differences between birds and dinosaurs and two similarities
teeth and claws, feathers and 4 chambered heart
Two major differences between birds and lizards
endothermic and 4 chambered heart