Mammals 1
Group of Mammals with intermediate body temperature and have their young in pouches.
What are Marsupials?
Most mammals have this kind of teeth
What are heterodonts?
Dominant avian animal alive today.
What are birds?
The protein found in bird feathers and reptile scales
What is beta-keratin?
Feather that lacks a rachis and is exclusively used for insulation
What is Down?
The dominant group of mammals alive today that give birth mostly developed young
What are Placental Mammals?
External traits unique to mammals
What is hair and mammary glands?
When a bird's hatchlings are completly dependent on the parents.
What is Altriciality?
The group of animals birds are thought to be descended from.
What are theropod dinosaurs?
The four things feathers provide for birds
What is flight, protection, camouflage, display, and sensing changes?
The teeth in mammals that are long and used by some to hold onto prey.
What are canine teeth?
Monotremes have this gate, which is more similar to modern reptiles.
What is a sprawling gate?
The bony projection of the birds mouth that is often specialized to a specific food source.
What is a beak?
Four traits that are unique to birds
What are beaks, feathers, hard shelled eggs, and a unidirectional respiratory system?
The shaft of the feather that supports the vane
What is a rachis?
The sugar molecule unique to milk
What is lactose?
The first milk an infant mammal gets from its mother. It is vital for developing the immune system.
What is colostrum?
Lightweight bones found in birds that are part of the respiratory system.
What are pneumatic bones?
The condition in which the infant of birds are largely independent from birth
What is Precociality?
The interlocking filaments of feathers. They are the smallest part of the feather.
What are Barbules?
Group of ancient animals mammals descended from.
What are synapsid terapods?
The names of the three bones found in mammal ears
What are the malleus, incus, and stapes?
The infraclass of birds that include all birds except for the ostriches, emus, and kiwis
What are palaeognathae?
The mostly hollow organs that act as extensions of the respiratory system in birds.
What are air sacs?
Feathers that are used for detecting changes in the environment.
What are filopumes?