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Question
Animals of which phylum exhibit tube within tube structure?
Animals of which phylum exhibit tube within tube structure?
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Solution
The correct option is D Annelida
The annelid body plan is a tube within tube; there is an outer sheath of muscles, epidermis and cuticle and an inner sheath of digestive tract suspended in the coelomic cavity.
So, the correct option is 'D'.
The annelid body plan is a tube within tube; there is an outer sheath of muscles, epidermis and cuticle and an inner sheath of digestive tract suspended in the coelomic cavity.
So, the correct option is 'D'.
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