Fragmentation, Biology

Assignment Help:

Fragmentation

In this type an organism breaks down into two or more pieces, each of which grows into a new individual. This means of reproduction is found in the organisms -which have good power of regeneration. Sponges and hydroid coelentrates exhibit this type of reproduction. If a sponge is macerated by pressing it through fine gauge, the separated cells come together in groups and grow into new individuals.

Very small fragments of free-living flatworms will regenerate into new individuals if right conditions are provided to them. A nemertine worm, Lineus, develops rings of constriction which cut the body into short fragments. These animals possess large number of undifferentiated cells which, when required can proliferate and develop into any kind of tissue.

 


Related Discussions:- Fragmentation

What is meant by unsaturation or saturation of oils and fats, Q. What is me...

Q. What is meant by unsaturation or saturation of oils and fats? When it is said that a triglyceride is saturated it means that in its molecule the carbon chain is bound in its

How dna-rna hybridization occurs, Q. How DNA-RNA hybridization occurs B...

Q. How DNA-RNA hybridization occurs Both DNA and RNA are able to form hybrids in solution with other RNA or DNA molecules which have complementary base pairing. Double-stranded

Anemophily - cross-pollination, Anemophily - Cross-pollination It ...

Anemophily - Cross-pollination It is also commonly referred to as wind pollination, i.e., the pollen grains are carried through wind currents. To ensure good pollination t

Illustrate the metabolism of cornea, Illustrate the metabolism of cornea? ...

Illustrate the metabolism of cornea? Metabolism of Cornea: The corneal epithelium plays several roles in the process of image formation. Its apical cell border interacts

Explain fungal infections, Fungal Infections Intravenous infusion of am...

Fungal Infections Intravenous infusion of amphotericin B deoxycholate  frequently causes fever and chills, and sometimes headache, nausea, vomiting, hypotension and tachypnea,

Protozoan , justify the claim that paramecium is the highly evolved protozo...

justify the claim that paramecium is the highly evolved protozoan basing on the morphological and physiological features .

What are the different radiographic techniques, Q. What are the different r...

Q. What are the different radiographic techniques used for assessing osseointegration? The different radiographic techniques used to assess osseointegration prior to stage 2 su

What is insulin pump, Insulin Pump An  insulin pump is a device used fo...

Insulin Pump An  insulin pump is a device used for the administration of  insulin, also known as continuous subcutaneous insulin infusion therapy. The device includes: - the

Explain nutrition monitoring and evaluation, Nutrition Monitoring and Evalu...

Nutrition Monitoring and Evaluation Monitoring and evaluation is an essential step in the nutritional care process and  is very important too. Monitoring specifically refers to

Mollusca, commercially important bivalve species

commercially important bivalve species

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