Question

Fish breathe with the help of gills which are richly supplied with blood vessels. The gills help the fish to



a) take in oxygen from air

(b) take in oxygen dissolved in water

(c) absorb nutrients present in water

(d) release waste substances in water

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Answer 1

Answer:

b) take in oxygen dissolved in water

Answer 2

Explanation:

option b

take in oxygen dissolved in water