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
How can Heart be affect Heart may be affected in two ways. One of the complications of diabetes is autonomic dysfunction which may disturb rhythm of heart beat and may lead to

Q. Guidelines for the Family Members for Healthy Coping? - Patient and the family members should discuss the situation, change in role,time distribution, share of money and oth

is the study of internal structure of cell included in cell biology or anatomy?

Two major objectives must be achieved to treat IE effectively. The infecting  micro-organism in the vegetation must be eradicated. Also, invasive, destructive intracardiac and foca

Which one of the following statements about all the four of Spongilla, Leech, Dolphin and Penguin is correct? 1. Penguin is homiothermic while the remaining three are poikilothe

Define Functions of Copper? Copper serves as a co-factor, as well as, an allosteric component of enzymes. In many enzymes copper functions as an intermediate in electrno transf

Why are some types of hemorrhagic diseases caused by genetic or acquired deficiency of the vitamin K metabolism? Lack of vitamin K predisposes to hemorrhages as this vitamin i

Explain about the Colorimeter? Colorimeter is an instrument for measuring the colour or colour intensity of a solution. It is an instrument that measures the concentration of a

Write short note on glycogen storage diseases. Glycogen storage diseases are caused by genetic defects  that  result in deficiencies in certain enzymes of glycogen metabolism.

Explain Protoderm in primary growth in shoot? The protoderm is one of the so-called "primary tissues" because it is formed first during germination and subsequent bud growth an