How do exchange of gases take …
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Posted by Lisaqueen Choudhury? 6 years, 2 months ago
- 2 answers
Yogita Ingle 6 years, 2 months ago
Fish take in oxygen-rich water through their mouths and pump it over their gills. As water passes over the gill filaments, blood inside the capillary network picks up the dissolved oxygen. The circulatory system then transports the oxygen to all body tissues and ultimately to the cells. While picking up carbon dioxide, which is removed from the body through the gills. After the water flows through the gills, it exits the body of the fish through the openings in the sides of the throat or through the operculum, a flap, usually found in bony fish, that covers and protects the fish gills.
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Lisaqueen Choudhury? 6 years, 2 months ago
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