Question

Why the complex multicellular organisms cannot give rise to complete individual from there cut body parts threogh the proces of regeneration.

Answer 1

In multicellular organisms organisms give birth to new one in form of young one , or in form of egg . But on the other hand unicellular organisms divide to give rise for a new one .

Answer 2

Regeneration can be used to reproduce only those organisms which have reletavely simple body organisation consisting of only a few specialised cells or tissues.

In a complex multicellular organisms specialises cells make up tissues;tissues make up organs;organs make up organ system;and finally organ systems make up organisms. Since comlex multicellular organisms have a very high degree of organisation in their body,they cannot be reproduced from their cut body parts by the process of regeneration.

For example :-

A dog is a complex multicellular organisms which cannot be regenerated from its cut body part say,a cut tail.This is because the cells present in the cut tail of a dog cannot produce dog's organs like heart,lungs,stomach and intestine,etc,needed for the making of a complete dog.

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