Biology, asked by ndirimah, 5 months ago

why are gills in fish highly vascularised

Answers

Answered by JindJaan01

3

Answer:

The concentration of oxygen in water is lower than air and it diffuses more slowly. ... Rather than using lungs "Gaseous exchange takes place across the surface of highly vascularised gills over which a one-way current of water is kept flowing by a specialised pumping mechanism.

Answered by shaurya168

1

Answer:

PLZ MARK IT BRAINLIEST

Explanation:

The concentration of oxygen in water is lower than air and it diffuses more slowly. ... Rather than using lungs "Gaseous exchange takes place across the surface of highly vascularised gills over which a one-way current of water is kept flowing by a specialised pumping mechanism.

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