According to the uses of both horse and donkey, there are some similarities as well as dissimilarities. Both of them were wild once and then some became domesticated. Presently, most of the donkeys and horses are domesticated while still there are some wild populations.
In the breathing system, the air enters at the nostrils (nares) , passes through the nasal cavity (where some smell detectors are located) , and enters the trachea. Sid â¦ e branches of this system the Eustachian tubes communicate with the middle ear to allow for the balancing or air pressure across the eardrum.
By the time this air enters the larynx, the rest of the respiratory tracts havenât got much more to do. The thoracic additional air-conditioning completes the temperature rise to 37ÂºC and the humidity rise to 100% by the time the air enters the lungs.