Friday, November 06, 2009

WHAT MUST THAT FEEL LIKE?!?

"...Sponges are aquatic animals, and the sponge species that Wilson worked with was compromised of just two basic types of cells. When Wilson treated adult sponges with chemicals that made the cells dissociate from each other, the result was a jumbled mass of individual and unconnected cells. But when normal chemical conditions were restored, the cells gradually began to move and stick to other cells. With time, cells of each type began to aggregate and adhere to cells of the same tissue type. This phenomenon came to be called selective adhesion. In Wilson's experiment, the cells eventually re-formed complete and functional adult sponges."

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