what is regenaration
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biology, regeneration is the process of renewal, restoration, and growth that makes genomes, cells, organisms, and ecosystemsresilient to natural fluctuations or events that cause disturbance or damage.[1] Every species is capable of regeneration, from bacteria to humans.[2][3] Regeneration can either be complete[4] where the new tissue is the same as the lost tissue,[4] or incomplete[5]where after the necrotic tissue comes fibrosis.[5] At its most elementary level, regeneration is mediated by the molecular processes of gene regulation.[6][7]Regeneration in biology, however, mainly refers to the morphogenic processes that characterize the phenotypic plasticity of traitsallowing multi-cellular organisms to repair and maintain the integrity of their physiological and morphological states. Above the genetic level, regeneration is fundamentally regulated by asexual cellular processes.[8] Regeneration is different from reproduction. For example, hydra perform regeneration but reproduce by the method of budding.
The hydra and the planarian flatworm have long served as model organisms for their highly adaptive regenerative capabilities.[9]Once wounded, their cells become activated and start to remodel tissues and organs back to the pre-existing state.[10] The Caudata("urodeles"; salamanders and newts), an orderof tailed amphibians, is possibly the most adept vertebrate group at regeneration, given their capability of regenerating limbs, tails, jaws, eyes and a variety of internal structures.[2] The regeneration of organs is a common and widespread adaptive capability among metazoan creatures.[9] In a related context, some animals are able to reproduce asexually through fragmentation, budding, or fission.[8] A planarian parent, for example, will constrict, split in the middle, and each half generates a new end to form two clones of the original.[11]
Echinoderms (such as the sea star), crayfish, many reptiles, and amphibians exhibit remarkable examples of tissue regeneration. The case of autotomy, for example, serves as a defensive function as the animal detaches a limb or tail to avoid capture. After the limb or tail has been autotomized, cells move into action and the tissues will regenerate.[12][13][14]Limited regeneration of limbs occurs in most fishes and salamanders, and tail regeneration takes place in larval frogs and toads (but not adults). The whole limb of a salamander or a triton will grow again and again after amputation. In reptiles, chelonians, crocodilians and snakes are unable to regenerate lost parts, but many (not all) kinds of lizards, geckos and iguanas possess regeneration capacity in a high degree. Usually, it involves dropping a section of their tail and regenerating it as part of a defense mechanism. While escaping a predator, if the predator catches the tail, it will disconnect.[15]
The hydra and the planarian flatworm have long served as model organisms for their highly adaptive regenerative capabilities.[9]Once wounded, their cells become activated and start to remodel tissues and organs back to the pre-existing state.[10] The Caudata("urodeles"; salamanders and newts), an orderof tailed amphibians, is possibly the most adept vertebrate group at regeneration, given their capability of regenerating limbs, tails, jaws, eyes and a variety of internal structures.[2] The regeneration of organs is a common and widespread adaptive capability among metazoan creatures.[9] In a related context, some animals are able to reproduce asexually through fragmentation, budding, or fission.[8] A planarian parent, for example, will constrict, split in the middle, and each half generates a new end to form two clones of the original.[11]
Echinoderms (such as the sea star), crayfish, many reptiles, and amphibians exhibit remarkable examples of tissue regeneration. The case of autotomy, for example, serves as a defensive function as the animal detaches a limb or tail to avoid capture. After the limb or tail has been autotomized, cells move into action and the tissues will regenerate.[12][13][14]Limited regeneration of limbs occurs in most fishes and salamanders, and tail regeneration takes place in larval frogs and toads (but not adults). The whole limb of a salamander or a triton will grow again and again after amputation. In reptiles, chelonians, crocodilians and snakes are unable to regenerate lost parts, but many (not all) kinds of lizards, geckos and iguanas possess regeneration capacity in a high degree. Usually, it involves dropping a section of their tail and regenerating it as part of a defense mechanism. While escaping a predator, if the predator catches the tail, it will disconnect.[15]
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The action or process of regenrating or being regenrated.
Regenarting is a process of renewal and grpwth thatakes genomes ,cells,organisms etc resilent yo natural fluctuations or events that cause damage.every spices is capable of regeneration from bacteria to humans.
HOPE THIS ANSWER HELPS U ALOT
Regenarting is a process of renewal and grpwth thatakes genomes ,cells,organisms etc resilent yo natural fluctuations or events that cause damage.every spices is capable of regeneration from bacteria to humans.
HOPE THIS ANSWER HELPS U ALOT
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