An advantage that deuterostomes have over protostomes is that each embryonic cell retains the capacity to develop into a complete individual.

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In deuterostomes, the early embryonic cells have the ability to develop into a complete individual even if they are separated from the embryo. This is because of the presence of a special kind of cell division called radial cleavage, which is more symmetrical and results in more equal, smaller-sized cells that retain developmental potential. In contrast, protostomes have spiral cleavage, which results in unevenly sized cells that differentiate quickly, making it harder for a separated cell to develop into a complete individual.

An Advantage That Deuterostomes Have Over Protostomes Is That Each