Multiple choice

When a living sponge is squeezed through a fine mesh and the cells are allowed to fall in a water container,

  1. the sponge dies

  2. the body cells do not aggregate after being dissociated

  3. the body cells again aggregate after being dissociated

  4. the body cells in the container survive independently like unicellular organisms
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sponges exhibit remarkable regenerative capacity due to their cellular organization. When dissociated, sponge cells can recognize each other through cell surface markers and reaggregate to form a complete, functional organism. This ability demonstrates the totipotent nature of sponge cells and their lack of true tissue organization, allowing them to reorganize into different cell types as needed.

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