life cycle of planaria
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All organisms go through a life cycle that describes how they change from their origin to their ultimate end. Although the great majority of multicellular animals originate in the fertilization of an egg by sperm there are some exceptions, and the planarians are examples of this. Although new individuals can, and generally do, originate from fertilization these flatworms can also originate asexually by fission. Most planarians have simple life cycles.
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when we cut the head,tail,body.then from the three parts head grows to full planaria similarly from tail, body like regeneration.
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