Morphallaxis - regeneration, Biology

Assignment Help:

Morphallaxis - Regeneration

This kind of regeneration takes place in plants, sponges and coelenterates such as jelly fishes and hydra. The missing parts are replaced via reorganization or re-modelling of the pre-existing ones. The wound is healed and the re-neighboring tissues re-organize themselves into whatever parts might have been lost or removed. So in this type of regeneration the residual part of the animal is able of restoring the lost part or giving rise to the whole organism just by remodelling or reorganising the entire available mass of cells into a new whole. The process does not include growth until the lost part or the whole body is regenerated, which is necessarily small at first.

Growth to reach normal size occurs later. Morphallactic regeneration can occur in total absence of cell division, as is seen in the case of regeneration in Hydra. A part of Hydra as small as l/200th of the original individual can make a complete animal without cell proliferation being involved. Thus even a few cells are able of forming a new organism; similarly in sponges a few archaeocytes are capable of regenerating a whole sponge body. The morphallactic procedure of regeneration is observed only in lower groups of animals. Animals with much more complex organisation regenerate their parts differently, generally by the production of a specialized bud or blastema.


Related Discussions:- Morphallaxis - regeneration

Reproduction, some infomations about reproduction

some infomations about reproduction

Bovine rotavirus diarrhoea, Bovine rotavirus diarrhoea The bovine rota...

Bovine rotavirus diarrhoea The bovine rotavirus is a RNA virus with 11 segments of double stranded RNA belonging to the genus Rotavirus in the family Reoviridae. Rotaviruses c

What kinds of mutation in disease-causing bacteria, What kinds of mutation ...

What kinds of mutation in disease-causing bacteria might make them more dangerous Pathogenic bacteria will become more dangerous to us if mutations make them more virulent or r

Leukamia.., is the leukamia dangerous

is the leukamia dangerous

Advantage & disadvantage of using algae as source of protein, Define Advant...

Define Advantage & disadvantage of using Algae as source of protein? Advantage Produces proteins which have almost all the Essential Amino acids. Rich in tyrosine

Define about the absorption of iron, Define about the Absorption of Iron? ...

Define about the Absorption of Iron? Before it can be absorbed, iron whether it is in the form of haem or non-haem must be released from the food matrices where it is bond with

Explain clinical manifestations of cardiomyopathy, Q. Explain Clinical Mani...

Q. Explain Clinical Manifestations of cardiomyopathy? 1) Asymptomatic, when the diagnosis is made by 2D Echocardiography. 2) Enlargement of LV. Apex is shifted down and out.

Pbpk modeling for improvement drug discovery , There are many characteristi...

There are many characteristics of the ideal drug candi-date. One of these is that its pharmacokinetics should meet its intended use. Many potentially useful drug can-didates, howev

Define observation or inference for barfoed test, Define observation or inf...

Define observation or inference for barfoed test? 1. Reddish brown precipitate is seen on the sides and bottom of the tube. The precipitate of the sides and bottom indicates th

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd