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

Question

(ii) Fish use their gills as a gas exchange surface.
Suggest three ways in which fish gills are adapted for efficient gas exchange.
(3)
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Ladonna 6 months 2021-07-17T23:39:12+00:00 1 Answers 77 views 0

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    2
    2021-07-17T23:40:13+00:00

    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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