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

Human brain, what cause to hypertention?

what cause to hypertention?

Aschelminthes, in what part of the human body aschelminthes found?

in what part of the human body aschelminthes found?

Define corneal ulcer - micronutrient deficiencies, Define Corneal Ulcer - M...

Define Corneal Ulcer - Micronutrient Deficiencies? Corneal xerosis, if not treated promptly, leads to ulceration of the cornea. Initially, the ulcer may be shallow, and if it b

What treatment should be used for constrictive pericarditis, Q. What treatm...

Q. What treatment should be used for constrictive pericarditis? Medical Treatment 1) Judicious use of diuretics to alleviate systemic congestion. This may be enough in s

Accessory food substances or vitamins, Q. Accessory Food Substances or Vita...

Q. Accessory Food Substances or Vitamins ? Bacteria also vary in their need for vitamins or accessory growth factors. Some microorganisms are unable to synthesize some or all o

Importance of fat synthesis and storage, Importance  of fat  synthesis  ...

Importance  of fat  synthesis  and storage : As  is clear from above  account, all  surplus nutrients, digested and  absorbed  from above the  immediate need of  body, are readily

Explain adverse effects of emtricitabine, Explain Adverse effects of Emtric...

Explain Adverse effects of Emtricitabine  Emtricitabine can cause hyperpigmentation of the palms and soles, particularly in dark-skinned patients. Because emtricitabine is also

Determine the seeds in the plant kingdom, What is the evolutionary importan...

What is the evolutionary importance of the emergence of seeds in the plant kingdom? The evolutionary significance of the seed is related to the plant capability of distant colo

What do you understand by myoglobin, Q. What is myoglobin? What is the func...

Q. What is myoglobin? What is the function of this molecule in the muscle tissue? Myoglobin is a present in muscle pigment and fibers similar to hemoglobin. Myoglobin has a gre

Integrated approach plus mastering, I recently rented Physiology, An Integr...

I recently rented Physiology, An Integrated Approach and I was looking online because I have to also get the A&P access code and realize I could have rented it too with my book. Is

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