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.
Answer:
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Answer:
The circulatory system consists of the heart, the arteries, veins, and capillaries.
Explanation:
