Question

What is regeneration? Describe the process of regeneration in Planaria.

Answer 1

Hint: If the body of Planaria is somehow reduced into many pieces, every piece grows into a whole organism.

Complete answer:
To answer this question, at first, we have to know the process of regeneration. Regeneration is described as the method of developing a complete organism from its body part.
The examples of regeneration are like Hydra and Planaria. When the body structure of Planaria is reduced into a number of pieces, each body part can regenerate and effects in formation of a whole Planaria. The regeneration of an organism happens through the method of and development. The body cell part which has been reduced down gets divided and makes a ball of cells. These more than one cells bring about formation of tissues and produce organs again and result in regeneration of every other Planaria.

Additional information:Regeneration is a type of asexual reproduction wherein the organism is able to re-developing some body part. Regeneration takes place via mitosis. In regeneration one parent is concerned to develop the progeny organisms while in reproduction one or more than one parents are concerned to develop the organisms.
Fragmentation is a method of asexual reproduction wherein an organism reproduces through the method of splitting into fragments and every fragment grows into a single organism. Regeneration, on the other side, occurs while an organism re-grows limbs that are lost because of predation.

Note:If the body of Planaria is somehow reduced or damaged up into many pieces, every piece grows into an entire organism. Also, regeneration does not always produce new individuals, whereas reproduction always produces new individuals from the parent organism.