fan and medal for help!
1.compared to adults,a newborn breathes
a. a quarter as ofter
b.half as often
c.the same amount
d.four times as often
2.the cluster of air sacs at the end of each bronchiole is called
a.bronchi
b.traches
c.alveoli
d.bronchus
3.the flap of elastic cartilage that protect food from entering the larynx is called the
a.epiglottis
b.glottis
c.larynx
d.esophagus
4.when blood leaves the lungs it is
a.oxygenated
b.deoxygenated
c.exchanging gases
d.rich in carbon dioxide