Question

please help me with this questions​

Answer 1

Answer:

dj to september of a very happy and healthy 38

Answer 2

Answer:

1.alveoli

2.18% O2, 78% N2, and 4.0% CO2

3.stomata

4.

The aortic origin of a pulmonary artery is a rare congenital anomaly in which one pulmonary artery branch, usually the right, arises from the ascending aorta just above the aortic sinuses, whereas the main pulmonary artery and the other pulmonary branch arise in their normal position.

5.