Which of the following is a lung disease in which breathing becomes difficult, and in some cases impossible? coronary artery disease

chronic obstructive pulmonary disease

cirrhosis

arrhythmia

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Explanation:

Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory lung disease that causes obstructed airflow from the lungs. Symptoms include breathing difficulty, cough, mucus (sputum) production and wheezing.

answer; genes dictate the production of specific enzymes, and affected individuals have genetic defects that cause them to lack certain enzymes;

when i got mine it was about a 6 or 7