Why fish can ventilate in denser water with limited oxygen
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Fishes live deep inside the water and so they use oxygen present in the water to breathe. They have specially designed organs called gills, which are very efficient in absorbing oxygen from water.
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Hey frnd....
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Fish reacted to low oxygen concentration with wider expansion of opercula (but not with increasing beat rate), leading to an increase in ventilation volume. As expected, the intensity of infection increased with decreasing oxygen saturation—probably due to a higher exposure to cercariae caused by increased ventilation under low oxygen concentrations.
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Here is ur answer...
Fish reacted to low oxygen concentration with wider expansion of opercula (but not with increasing beat rate), leading to an increase in ventilation volume. As expected, the intensity of infection increased with decreasing oxygen saturation—probably due to a higher exposure to cercariae caused by increased ventilation under low oxygen concentrations.
Hope it helps☺
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