Assertion: Sponges have body organisation of "cellular level".
Reason: There is some physiological division of labour.
In the light of the above statements, choose the correct answer from the options given below:
is correct but (R) is not correct is not correct but (R) is correct and (R) are correct and (R) is the correct explanation of 
Text Solution
Verified by ExpertsSponges are multicellular but they have cellular level of body organization i.e., true tissue, movable parts, or appendages are not formed. Although, there is some physiological division of labour, accompanied with structural differentiation amongst body cells. But here, similar cells are arranged neither in permanent layer nor masses to form tissues.
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