The function of the water canal system in sponges are
A
food gathering and exchange of gases only
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B
food gathering, removal of wastes and exchange of gases
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C
food gathering and removal of wastes only
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D
only removal of wastes and exchange of gases
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Solution
The correct option is B food gathering, removal of wastes and exchange of gases Water canal system is a specific characteristic feature of sponges. It functions in food gathering, removal of wastes and exchange of gases during respiration.