Diffrentiate between regeneration amf fragmentation
Answers
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FRAGMENTATION:
⚫Multicellular organisms with simple body organisation may break into small pieces,where each piece may grow into complete organism.
⚫This is observed in spirogyra.
REGENERATION
⚫Multicellular organisms with cell differentiation,when cut in small pieces,may regrow into complete organisms
⚫For e.g. PLANARIA and HYDRA
The difference between fragmentation and regeneration is quite obvious in their respective names. Fragmentation occurs when an organism literally breaks off from itself. The broken fragments of the organism grow into individual separate organisms. On the other hand, regeneration is form of sexual reproduction where, the organism is capable of regrowing certain parts of its body when it loses them. Octopi, for instance, can regrow their arms when a predator bites them off.
Regeneration is termed as a asexual mode of reproduction. It is common in unicellular organisms and lower multicellular organisms, such as planaria. Here, the organism fragments when it’s ready to reproduce, and new organisms are regenerated from these fragmented parts. The difference between regeneration and fragmentation are summarized below:
Conclusion:
Fragmentation is a method of asexual reproduction where an organism reproduces by the process of splitting into fragments and each fragment grows into an individual organism. Regeneration on the other hand, happens when an organism regrows certain parts or limbs which it lost due to predation.
Points to Ponder:
In most cases, fragmentation happens when an organism wants to reproduce, so after the organism splits, regeneration enables creation of new individuals from the fragments. On the other hand, regeneration in other animals does not mean creation of new individuals, but just regrowing lost limbs. So technically, is regeneration a form of asexual reproduction? The answer to that is both “Yes” and “No.”
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