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

Determine the tenant of the cell theory, Determine the tenant of the Cell T...

Determine the tenant of the Cell Theory Which of the following is not a tenant of the Cell Theory as postulated by Mathias Schleiden and Theodor Schwann? A. All organisms a

Explain keshan disease caused by selenium deficiency, Explain Keshan diseas...

Explain Keshan disease caused by Selenium deficiency? It is a cardiomyopathy (disease of the myocardium, involving heart muscle) that was identified to affect children and wome

What is the economic importance of sponges, Q. What is the economic importa...

Q. What is the economic importance of sponges? a few chemical substances secreted by sponges have anti-inflammatory, anti-tumoral activities and antibiotic and they are used in

Absorption of photic energy for photosynthesis, Q. What is the main molecul...

Q. What is the main molecule responsible for the absorption of photic energy for photosynthesis? And where is that molecule located in photosynthetic cells? The chlorophyll mol

Similarities between chlorplasts and prokaryotic cells, What are the simila...

What are the similarities between chlorplasts and prokaryotic cells?

What are the types of good in the demand curve, What are the types of good ...

What are the types of good in the demand curve? Some types of good are as follows: • Normal good: When incomes of consumers/households increase the quantity demanded wo

Matter of gene control and imprinting, Differentiation is largely a matter ...

Differentiation is largely a matter of gene control and imprinting (CH3) plays a role, but ___ may also play a role.

Industrial melanism, In this section, we shall discuss a classic example of...

In this section, we shall discuss a classic example of natulal selection in action. In the preceding unit, it was stated that natural selection always aims at eliminating alleles,

General requirements of implant materials, General requirements of implant ...

General requirements of implant materials 1) Biologically compatibility: an ideal implant material will elicit mainly physiological reactions within the surrounding tissues (bo

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