Gas Exchange. By: An indian and a jew. How it all started. Respiratory structures are adapted for gas exchange in air or water. External Gas exchange, creature uses their body surface for gas exchange Gills are adapted for respiration in water
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An indian and a jew
Respiratory structures are adapted for gas exchange in air or water.
All respiratory systems must be:
(3)Large in relation to the body.
It is involuntary and the respiratory centers in the medulla oblongata control it. Can be influenced by nervous and chemical input.