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.
A. Compressor inlet. Water vapor (humidity-moisture) enters the air system through the air compressor inlet air filter. The air compressor sucks in approximately 7 cubic feet of atmospheric air at 0 psig, and that volume of air is compressed into 1 cubic feet of air at 100 psig. The water vapor (humidity-moisture) that was in the 7 cubic feet of atmospheric air is now compressed into 1 cubic feet of compressed air. 2.