Lesson 7 Flashcards
1
Q
What is the average number of muscles that birds have?
A
about 175 muscles
2
Q
Compare bird and mammal lungs
A
birds have smaller, denser lungs than mammals.
3
Q
What do birds have that compensates for their small lungs and lack of diaphragm.
A
Birds have air sacs that allow them to breath continuously.
4
Q
Why do birds need such large amounts of oxygen
A
to power their large flight muscles.
