Annelids - regeneration in invertebrates, Biology

Annelids - Regeneration in Invertebrates

Between the segmented worms both the polychaetes and oligochaetes have remarkable powers of regeneration. Leeches totally lack this capability. In polychaetes tentacles, palps, and even heads ripped off by predators are soon replaced. This is of common occurrence in burrowers and tube dwellers. Some worms as well display self-amputation or autotomy. For example, the posterior segments are detached while the worm is disturbed and they are regenerated soon thereafter. Earthworms (oligochaeta) can as well regenerate both anterior and posterior segments. If an earthworm is cut into two halves the posterior half regenerates the anterior segments involving the mouth, and the anterior half regenerates from its posterior cut end, the new posterior segments. Two new individuals so rise from the original one.

Posted Date: 1/31/2013 6:06:38 AM | Location : United States







Related Discussions:- Annelids - regeneration in invertebrates, Assignment Help, Ask Question on Annelids - regeneration in invertebrates, Get Answer, Expert's Help, Annelids - regeneration in invertebrates Discussions

Write discussion on Annelids - regeneration in invertebrates
Your posts are moderated
Related Questions
Oxaloacetate to Malate Oxaloacetate to Malate: Oxaloacetate cannotĀ  permeate mitochondria 1 membrane well and it must be transported across the membrane in the form of malate

What is agar-agar? Agar-agar is a sulphonated mucopolysaccharide containing mainly D-galactose, D-glucuronic acid and 3,6 anhydro L-galactose. It is derived from red sea weed e

Why are broad-spectrum antibiotics often used to treat infections caused by unidentified pathogens? What is the danger associated with overusing such antibiotics? As broad-spec

what is the job of the cell coat?

How Low Birth Weight cause Protein Energy Malnutrition? The beginning of PEM in children starts in US from the time of their birth. At least a third of the Indian children are

Explain the drawback of protein hydrolysates The drawback of many protein hydrolysates, is that when hydrolysed, most of the food proteins liberate bitterĀ  tasting peptides, wh

Hardy desert shrubs - having short stem, number of branches and thick leaves. The animals of deserts are primarily arthropods, reptiles, birds and mammals. Large animals are unc

Accidents Resulting in Death Accidents that cause death are dealt with in a different way. The law requires full compensation to the widow for complete life or until remarriag

How does metagenesis in cnidarians differ from the true alternation of generation shown by plants?

Mitral valve prolapse (MVP) has emerged as a prominent, predisposing structural cardiac abnormality and in adults accounts for 7 to 30 per cent of NVE in cases not related to drug