The process of evolutionary cephalization be described, Biology

Assignment Help:

Using examples of invertebrate nervous systems how can the process of evolutionary cephalization be described?

Considering the instance of invertebrates it is observed that evolution makes the enhancing of the complexity of the organisms to be accompanied by convergence of nervous cells to special structures for controlling and commanding: the ganglia and the brain. In easy invertebrates, like cnidarians, the nervous cells are not concentrated but they are found dispersed in the body. In platyhelminthes a starting of cephalization with the anterior ganglion concentrating neurons is already verified. In annelids and arthropods the existence of a cerebral ganglion is evident. In cephalopod molluscs the cephalization is even big and the brain commands the nervous system.

 


Related Discussions:- The process of evolutionary cephalization be described

What do you mean by overgloves, Q. What do you mean by Overgloves? The ...

Q. What do you mean by Overgloves? The purpose of these gloves is to use time more efficiently and to protect the skin on the hands through minimizing the number of times that

Sporozoans – protozoan, Sporozoans – Protozoan Sporozoans of the genus...

Sporozoans – Protozoan Sporozoans of the genus Plasmodium are responsible for causing a serious human disease, malaria. They are among, the best known parasites which live in

Microbiology, different applications of microbiology

different applications of microbiology

Relaxin - reproduction, Normal 0 false false false EN-I...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Factors that limit the reproductive potential, Organisms are made to compet...

Organisms are made to compete for their needs from the environment. The competition as we pointed earlier could be for the food and territory, to overcome the adverse climatic cond

Define x-ray chest and coronary angiography, Q. Define X-Ray Chest and Coro...

Q. Define X-Ray Chest and Coronary Angiography? X-Ray Chest It shows cardiomegaly with left ventricle (LV) and left atrium (LA) enlargement. There may be signs of pulmona

What is the official name of pyruvic acid, What is the official name of pyr...

What is the official name of pyruvic acid? Pyruvic acid is 2-oxopropanoic acid. It is thus a molecule made of three linearly bound carbons with one extremity forming the organi

Define the functional properties of hydrocolloids, Define the functional pr...

Define the functional properties of hydrocolloids The hydrocolloids not only have the functional properties but also have nutritional characteristics. Most polysaccharide gums

Define milk as a rich source of protein, Define Milk as a rich source of pr...

Define Milk as a rich source of protein? A value of 3.5% protein is often considered as an average for milk. Milk protein has traditionally been divided into 2 classes - casein

What is atrial septal defect, What is Atrial Septal Defect ? Fig...

What is Atrial Septal Defect ? Figure: Anatomical location of Am Indication for Surgery :  The presence of an ASD or PAPVC (Partial Anomalous Pulmonary Venous Conn

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