Que. No. 152
Which of the following statement is incorrect with reference to cell aggregate plan?
A) In cell aggregate plan, there is least division of labour
B) In cell aggregate plan, there is no nervous coordination between the cells
C) The cells do not form tissues or organs in the cell aggregate plan
OD) There is a digestive system without anus
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Porifera animals, i.e., sponges have a cellular level of body organisation. Cnidarians have tissue grade of body organisation. Roundworms have organ system level of body organisation. Flatworms have organ and organ system level of body organisation
So, the correct answer is 'Sponges'
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