Answer:
can be caused by radiation
Explanation:
u know u can always look it up
but u can also lok up malkovich earth cycle :)
Pretty sure its B
Answer: 1 - Trachea
2 - Pulmonary vein
3 - Pulmonary artery
4 - Alveolar duct
5 - Alveoli
6 - Cardiac notch
7 - Bronchioles
8 - Tertiary bronchi
9 - Secondary bronchi
10 - Primary bronchi
11 - Larynx
Hope i help