Question

Difference between sponges and other metazoa is

• A. Sponges do not contain blood
• B. Sponges possess cellular level of organization
• C. Sponges do not have cell division
• D. Sponges do not have division of labour

Answer 1

Answer: (B)

Sponges possess cellular level of organization

Sponges have cellular level of organisation and hence, are considered as simplest forms among the metazoans. They consist of only a few specialised but loosely organised cells that display little coordination. This restriction to the cellular levels of body organisation means that the functions are carried out by individual cells or aggregate of cells.

So, the correct answer is 'Sponges possess cellular level of organization'.