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How do fish breathe?

How do fish breathe?

Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.



kala, hingamine, seeneliistak, gaasivahetus, väljahingamine, sissehingamine, hapnik, süsinikdioksiid, kapillaar, loom, selgroogsed, Bioloogia

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Mageveekala, keda kasutatakse toiduks mitmel pool maailmas.

Respiratory system

The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.

Freshwater fishes

Many freshwater fishes are also popular as food.

Selgroogsete elutsükkel

Selgroogsete elutsükkel algab isendi paljunemisrakkude tootmisest ja lõpeb järgmise põlvkonna paljunemisrakkude tootmisega.


A group of fish characterised by a cartilaginous skeleton, well-known species include the great white shark and the great hammerhead shark.

Effects of smoking on the lungs

Smoking severely damages the respiratory system, it may cause COPD or lung cancer.

Prehistoric armoured fishes

Extinct species of fish which had thick ´armour´ protecting the head.

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