contestada

(ii) Fish use their gills as a gas exchange surface.
Suggest three ways in which fish gills are adapted for efficient gas exchange.
(3)
1
2
3

Respuesta :

Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.

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