Explain the term "Regeneration" as used in relation to reproduction of organisms. Describe briefly how regeneration is carried out in multicellular organisms like Hydra.
CBSE OUTSIDE DELHI - SET 3 2016
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Regeneration is the ability of a living organism to regrow the part of the body that gets broken off or cut. Regeneration is not the same as reproduction, since the organism would not depend on being cut to reproduce. For example, if a hydra breaks horizontally into two parts, then the upper part having the mouth and tentacles regenerates to form the lower part. While the lower part of the original hydra without mouth and tentacles regenerates to form the mouth and tentacles. Thus, two complete organisms are formed from the two cut parts.
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