Rapid crawling and swimming, Biology

Assignment Help:

Rapid Crawling and Swimming

Rapid Crawling

This movement depends upon mainly on the contralateral waves of contraction of the longitudinal muscles of the body wall that causing lateral undulations of the body. The parapodial activity explained above supplements the body undulations. This results in rapid crawling. The crawlers involves polychaetes of many families such as nereids, syllids, phyllodocidae etc.

Swimming

The movements included are basically similar to rapid crawling mentioned above but during swimming the waves are fewer but larger and much more frequent. The animals are pelagic, having no contact along with the substratum. Many crawlers as well swim, but some like alciopids and tomopterids are exclusively pelagic.


Related Discussions:- Rapid crawling and swimming

How does the intensity of simple diffusion differ, How does the intensity o...

How does the intensity of simple diffusion differ in relation to the concentration gradient of the moved substance? The higher the concentration gradient of a substance the ext

Eucaryotic cell structure , Eucaryotic cell structure All eucaryotic c...

Eucaryotic cell structure All eucaryotic cells have a cytoskeleton made up of a network of protein filaments (Figure shown below). This network gives the cell its shape, capac

Explain about the secondary protein derivatives, Explain about the Secondar...

Explain about the Secondary Protein Derivatives? These are the products of further hydrolytic cleavage of the protein molecule, Examples include: a) Proteoses: Soluble in wa

Describe the physiology of atrial septal defect, Describe the Physiology of...

Describe the Physiology of atrial septal defect? In ASD the magnitude of left to right shunt is determined by the size of the defect and the relative compliance of the right ve

Definition of osseointegration, Q. Definition of Osseointegration From the ...

Q. Definition of Osseointegration From the view of the patient? An implant fixture is osseointegrated if it provides a stable and apparently immobile support of a prosthesis un

Explain mechanism for reduce the absorption of nutrients, Explain Mechanism...

Explain Mechanism for reduce the absorption of nutrients? The absorption of nutrients is also reduced by mechanisms other than increasing the viscosity of gastrointestinal cont

TISSUES, difference between axon and cyton

difference between axon and cyton

Explain magnetic stirrer - food microbiology, Explain Magnetic Stirrer - Fo...

Explain Magnetic Stirrer - Food Microbiology It can be used for mixing ingredients at the time of media or reagents preparation. Mixing happens with spinning of a teflon coat

Can you explain pneumothorax, Q. Can you explain Pneumothorax? Air in t...

Q. Can you explain Pneumothorax? Air in the pleural cavity manifests in a number of ways on the CXR, depending on the volume of air and position of the patient. The typical fin

Permanent partial disability - injury from an accident, Permanent Partial D...

Permanent Partial Disability - Injury from an Accident Permanent partial disability restrains the worker by doing the job he has been doing. He recovers from the injury in 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