Question

explain the term regeneration as used in relation to reproduction of organisms. deacribe briefly how regeneration is carried out in multicellular organisms like hydra

Answer 1

Regeneration is the ability of a living organism to regrow the part of the body that gets broken off. 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.

Answer 2

Answer:

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

Regeneration in hydra:

1) The body of hydra is cut into many pieces by any means.

2) Each piece contains specialised cells through which generation is carried out.

3) these cells proliferate and make large numbers of cells.

4) Different cells undergo changes to become various cell types and tissues from this mass of cells.

5) the changes take place in an organised

sequence referred to as development which leads to development of a new organism.

Explanation:

Hydra uses budding method to reproduce which is a kind of regeneration method.

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