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whereas we have lungs for ventillation, the fish use gills, on the side of their head, usually.

As they swim, water flows over the gills and oxygen diffuses from the water into their blood stream.

:)

if you need more info, then search gills on Google!

:D

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13y ago
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13y ago

The respiratory organs of animals like fish that live in water would be called gills.

A gill is an anatomical structure found in many aquatic organisms. It is a respiratory organ that extracts dissolved oxygen from water, afterward excreting carbon dioxide. It does notbreak up water molecules in hydrogen and oxygen and absorb oxygen. The microscopic structure of a gill presents a large surface area to the external environment.

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9y ago

The fish's analog to the human respiratory system (lungs, and so forth) is their gills.

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13y ago

The gills and the labyrinth organ.

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10y ago

1.gills

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12y ago

gills

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Q: Which organ in the fish is the most similar to the human respiratory system?
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