AP BIOLOGY

Detailed explanation-1: -Regeneration occurs when an organism regrows a part of the body. In this process there are no new individual organisms that are formed. Examples of regeneration include regrowing a lost limb, such as the tail of a lizard.

Detailed explanation-2: -Lizards are amniotes with the remarkable ability to regenerate amputated tails. The early regenerated lizard tail forms a blastema, and the regenerated skeleton consists of a cartilage tube (CT) surrounding the regenerated spinal cord. The proximal, but not distal, CT undergoes hypertrophy and ossifies.

Detailed explanation-3: -Regeneration is a type of asexual reproduction in which the organism is capable of regrowing certain body parts. Regeneration occurs via mitosis. Lizards can regenerate their tails, star fish can regenerate their arms while humans have the ability to regenerate their liver to a certain extent.

Detailed explanation-4: -Many species of lizard use caudal autotomy, the ability to self-amputate a portion of their tail, regenerated over time, as an effective anti-predation mechanism.

Detailed explanation-5: -In some organisms, if the organs or the whole organisms splitter into pieces, then each piece regenerates the lost parts. Certain organizations have specific stem cells that regenerate and continue this process. House lizards are a good example of regeneration since they regrow their tail after it has been shed.