Question

In an experiment, the sponge is squeezed through silk cloth and allowed to stand undisturbed in an appropriate medium. It is performed to prove that

• A. The sponges are multicellular.
• B. The cells are loosely arranged.
• C. The cells are so small that they can be squeezed through cloth.
• D. The sponges are non-living.

Answer 1

Answer: (B)

The cells are loosely arranged.

Sponges can regenerate damaged or missing parts with ease. If a sponge is squeezed through a fine silk cloth and all its cells separated, the cells eventually re-aggregate and regenerate into several new but smaller sponges. This proves that cells are loosely arranged in sponges. Therefore, the correct answer is option B.