1. Explain the process of regeneration in Planaria.
  2. How is regeneration different from reproduction?
CBSE DELHI - SET 1 2013
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  1. In Planaria, any part of the body which gets cut is capable of regeneration or developing into a complete organism. Regeneration is carried out by specialised cells. These cells proliferate and make large number of cells. From this mass of cells, different cells undergo changes to become various cell types and tissues. These changes take place in an organised sequence referred to as development.
  1.  
Regeneration Reproduction
It is a type of asexual mode of reproduction in which only single parent is invoted. It includes both sexual and asexual mode of reproduction in which either single parent or both the parents are involved respectively.
This mode of reproduction is dependent on the cut. This mode of reproduction is independent of cut.
Example- Planaria. Example- Sexual reproduction in humans.
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