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Difference Between Fragmentation and Regeneration

Fragmentation and regeneration are two completely different processes. Fragmentation is one of the types of asexual reproduction whereas regeneration is the regrowth of a tissue in an organism. Let’s have a look at the differences between fragmentation and regeneration.

Fragmentation

Regeneration

Fragmentation is one of the types of asexual reproduction. 

Regeneration is not a form of sexual or asexual reproduction. 

In fragmentation, the body of an organism breaks into fragments. Every fragmented part of the body grows into an individual separate organism. 

In regeneration, partial or complete regrowth of the tissue takes place. 

The process of fragmentation gives rise to new individual organisms. 

The process of regeneration does not give rise to new individual organisms. 

Fragmentation is mostly seen in organisms with a simple body organization. 

Regeneration is mostly seen in organisms with a complex body organization. 

Fragmentation is not seen in all animals. It is specific to a few particular species only. 

Regeneration is seen in all multicellular organisms having a complex body organization. 

There’s no involvement of specialized cells in the process of fragmentation. 

The process of regeneration involves the use of some specialized cells. These specialized cells proliferate and form clusters. The cells present in the cluster further undergo proliferation to form new cells. 

The process of fragmentation is observed only in invertebrate species. 

The process of regeneration is observed in vertebrate and invertebrate species as well. 

Fragmentation is mostly observed in non-vascular plants. 

Regeneration is mostly observed in animals. 

The fragmentation process is largely associated with the structural complexity of an organism. Fragmentation is quite common in organisms with a simple body organization. 

Regeneration is not associated or dependent on the structural complexity of an organism. Irrespective of class & category, regeneration is observed in almost all multicellular living organisms.

The fragmentation process is triggered either in the presence of a predator or as a result of a natural process. 

The regeneration process is triggered by the damaged body part. 

Example: Fragmentation is seen in organisms such as flatworms, sponges, and sea anemones. 

Example: The regeneration of the partly or completely cut lizard tail is the best example for regeneration. 

Similarly, regrowth of blood vessels and regrowth of octopus limbs are the other examples of this phenomenon. 

 

Fragmentation

Fragmentation is a type of asexual reproduction when a living being breaks into various pieces or smaller pieces of itself. Each fragment brings about the development of a different, individual, and free-living being, which are clones of the parent organic entity. Fragmentation is a consequence of a living organism breaking off from itself. This phenomenon is displayed in specific plants, fungi, sponges, sea anemones, flatworms, and annelid worms.

  • Fragmentation in plants
    Fragmentation is one of the most commonly seen types of asexual or vegetative reproduction. In plants, the fragmentation process begins when the parent shoot gets rooted in the soil. After a certain period, the rooted shoot gets detached from the parent plant. The detached shoot grows as a separate, independent, and individual plant. This type of vegetative reproduction is widely seen in non-vascular plants and is less common in vascular plants.
  • Fragmentation in animals
    Animals such as sea anemones, sea stars, sponges, flatworms, and annelids undergo the fragmentation process. The organism undergoing fragmentation splits itself into two or more parts. Every part grows into a separate individual. Every individual consists of all organs and tissues as seen in the parent organism. There’s no loss of organs or tissue in the animals produced by fragmentation.

Regeneration

Regeneration is a process where there is complete or partial regrowth of damaged tissues in any living organism. This implies if a living being is parted or broken into a few pieces, every one of its parts becomes back to its previous condition.

There are particular cells in specific organizations that are liable for completing this method. A typical illustration of the course of regeneration is the house lizards becoming back their tail after it has been shed.

Key points to remember

  • Fragmentation is a type of asexual reproduction when a living being breaks into various pieces or smaller pieces of itself. Regeneration is a process where there is complete or partial regrowth of damaged tissues in any living organism.
  • The fragmentation process is triggered either in the presence of a predator or as a result of a natural process whereas the regeneration process is triggered by the damaged body part.
  • The process of fragmentation gives rise to new organisms whereas the process of regeneration does not give rise to new individual organisms.
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