The answer to the first question is a.
The correct answer is emphysema.
This respiratory disease occurs when alveoli get enlarged, and thus cause chronic lung inflammation and later on lung fibrosis as well. This person then finds it extremely hard to breathe properly, as airways tend to collapse during expiration.
Because many living organisms begin in the womb similarly, showing that organisms have a common ancestor
The products of anaerobic respiration are lactic acid, carbon dioxide, and water.
