how does regeneration take place in planaria ?
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Planaria has the amazing capacity to regenerate its lost body part. When it is cut horizontally, separating the head from the tail, the part with tail regenerates the lost head and the part with head regenerates the lost tail.
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Regeneration in planarians depends on the presence of stem cells called neoblasts. These cells are distributed throughout the body and, when part of the worm has been amputated, they are activated to reform the tissues that have been removed (Wagner et al., 2011).
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