Question

What are the types of reparative regeneration in Vertebrates?

Answer 1

Vertebrates are animals with a backbone that runs through their entire body. Fish, amphibians, reptiles, birds, and mammals are the major groups. Backbones are absent in invertebrates. Worms and jellyfish have soft bodies, while spiders and crabs have a hard outer casing covering their bodies.

Complete answer:
The process of renewal, restoration, and tissue growth that makes genomes, cells, organisms, and ecosystems resilient to natural fluctuations or events that cause disruption or damage is known as regeneration in biology. From bacteria to humans, all species can regenerate. Complete regeneration occurs when the new tissue is identical to the lost tissue, whereas incomplete regeneration occurs when the new tissue is not identical to the lost tissue.
In multicellular organisms, reparative regeneration refers to the regeneration of damaged cells or tissues in injured parts. Invertebrates and vertebrates both have it. As a result, the correct answer is 'Injury healing.'
There are three types of reparative regeneration in vertebrates:
Complete regeneration occurs when the regenerated structures are identical to those that existed before the injury.
When a lost part of an organ is replaced by a scar, the rest of the organ enlarges to perform the same function as before regeneration, this is known as regenerative hypertrophy.
Organelle compensatory hyperplasia within the cell. A scar replaces the missing part. Organelles divide and grow in the rest of the organ cells, allowing them to perform their functions.
Adult mammals, in comparison to most vertebrate embryos or larvae, adult salamanders, and fish, are thought to have limited regenerative capacity. However, Robert O. Becker's regeneration therapy approach, which uses electrical stimulation, has shown promising results in rats and mammals in general.

Note:
Morphallaxis is a type of regeneration that requires tissue repatterning and has little growth. Hydra, for example, grows by losing cells from its end and budding. The upper part develops into a foot, while the lower part develops into a head when cut in half. The head region prevents the formation of nearby heads.