1.

Explain the term "Regeneration" as used in relation to reproduction of organism. Describe briefly how regeneration is carried out in multicellular organisms like Hydra.

Answer»

Regeneration: It is the ability of an organism to give rise to a new organism/individual from their body parts.

Regeneration in Hydra:

(i) The body of Hydra by any means is cut into a number of pieces.

(ii) Each piece contains specialized cells.

(iii) These cells proliferate and make a large number of cells.

(iv) From this mass of cells different cells undergo changes to become various cell types, and tissue which finally develops into a new organism.



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