Question
What characteristics do gills of a fish and the mouth cavity of a frog have in common that enable them to be efficient in gaseous exchange.
Answer
- They have a film of water for dissolving gases.
- They have a dense network of blood capillaries;
- They are one-cell thick for faster diffusion of gases;
- They have a dense network of blood capillaries;
- They are one-cell thick for faster diffusion of gases;
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