| Term | Definition |
|
down feather |
The short, fluffy feathers that trap heat and keep a bird warm |
|
canine |
Sharply pointed teeth that stab food and tear into it |
|
monotreme |
A mammal that lays eggs. The Duck Billed Platyus and Echidnea are two examples. |
|
lift |
An upward force on an object that results from the difference in pressure between the upper and lower surface of the object |
|
marsupial |
A mammal whose young are born alive at an early stage of devlopment, and which usually continue to develop in a pouch on their mother's body |
|
molar |
Teeth that, along with the premolars, grind and shred food into tiny bits |
|
bird |
An endothermic vertebrate that has feathers and a four-chamberd heart, and lays eggs |
|
crop |
A bird's internal storage tank that allows it to store food inside its body after swallowing it |
|
premolar |
Teeth that, along with molars, grind and shred food into tiny bits. |
|
incisors |
Flat-edged teeth used to bite off and cut parts of food |
|
mammal |
An endothermic vertebrate with a four-chambered heart, skin covered with fur or hair, and has young fed with milk from the mother's body |
|
placental mammal |
A mammal that develops inside its mother's body until its body systems can function independently. |
|
contour |
A large feather that helps give shape to a bird's body |
|
gizzard |
A thick-walled, muscular part of a bird's stomach that squeezes and grinds partailly digested food |
|
insulator |
A material taht does not conduct heat well and thus helps to prevent heat from escaping |