vertebrates - birds Flashcards
1
Q
birds and crocs?
A
four chambered heart (other rep have 3)
parental care
undirectional airflow in lungs
2
Q
4 bird characteristics
A
feathers
beaks
gizzards (grind food)
hollow bones
3
Q
flight
A
forelimbs made into wings
lightweight feathers
hollow bones
strong breast muscles
endothermy
4
Q
migration
A
many fly between two places to find food
5
Q
eggs and nests
A
hard shell
bright eggs (make males guard)
nests may be in cups cavities scraps on ground
6
Q
extinctions
A
130 since 150 years ago
cats main contributer especially on islands
7
Q
domestication
A
greylag goose
mallards
rock pigeon
wild turkey
red jungle fowl
