Question

explain with the help of labelled diagram the development takes place in each of the body of the planaria
where body is cut into 3 pieces none of this process is and give an example of an organism which is similar process can be observed​

Answer 1

The process involved is called regeneration of planaria . When planaria gets cut into 3 parts each part grows into a new planaria due to repeated cell division

Answer 2

when a planaria is cut into pieces the regenerative cells multiply repeatedly and each part develops into a new organism. This process is called regeneration. Hydra is another organism in which we can observe this process.