Question

how does the process of respiration occurs in living organism

Answer 1

it occurs through the aerobic respiration happening in the humans air enters our body through two holes in the noes called nostrils and passes through the nasal cavity to the wind pipe or trachea.from the trachea the air passes into two small tubes called bronchi. Each bronchus enters into a lung. inside the lungs, each bronchus divides into a large number of small tubes called bronchioles. at the end of each bronchiole tiny insects are present which are called alveoli the walls of the alveoli have a large number of tax theme blood capillaries through which exchange of gases takes place .