Differences between gaseous exchange in fish and terrestrial insects
| Fish | Terrestrial insects |
| Gaseous exchange occurs across the gill | Gaseous exchange occurs across the tracheoles’ membrane |
| Gaseous exchange occurs between water and blood | Gaseous exchange occurs between air and haemocoel |
| Water contains low oxygen content | Air contains high oxygen content |
| Ventilation of gills is by drawing water into open mouth and pumping it over the gills when the mouth is closed | Ventilation of tracheoles is done by contraction and relaxation of thoracic and abdominal muscle to force air out and into the tracheal system respectively |
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Dr. Bbosa Science
CATEGORIES General
TAGS Dr. Bbosa Science
