What is the main evolutionary novelty presented by annelids, Biology

Assignment Help:

What is the main evolutionary novelty presented by annelids?

The main evolutionary novelty shown by the beings of the phylum Annelida is the coelom, the internal body cavity totally covered by mesoderm, a feature also there in arthropods, molluscs, chordates and echinoderms. Platyhelminthes are acoelomate and nematodes are pseudocoelomate (their internal cavity is partly covered by mesoderm).

 


Related Discussions:- What is the main evolutionary novelty presented by annelids

Predominant feature of steatorrhoea, Q. Predominant feature of steatorrhoea...

Q. Predominant feature of steatorrhoea? A predominant feature is delayed and defective absorption of fat, which results in bulky stools containing large quantities of fat (know

What are trends of the gametophyte in the evolution of plant, What are tren...

What are trends of the gametophyte in the evolution of plants? The tendency of the gametophyte evolution in plants has been towards the formation of gametes that are self-dete

Explain the double and simple closed circulation, What is the difference am...

What is the difference among double closed circulation and simple closed circulation? Double closed circulation, or closed circulation, is that in which the blood circulates by

Determine the occurrence of vitamin A, Determine the Occurrence of vitamin ...

Determine the Occurrence of vitamin A In the vegetable kingdom, vitamin A  probably occurs in the form of its provitamins which belong to the group of carotenes. Carrots, spina

Renal function & cardiovascular - change related with ageing, Define Renal ...

Define Renal Function & cardiovascular - change related with ageing? Changes associated with the cardiovascular and renal function: The progressive accumulation of athermanous

What is cluster headache, What is Cluster headache This is a unilateral...

What is Cluster headache This is a unilateral pain in the head or face that rarely lasts longer than 2 hours but recurs repeatedly for a period of weeks or even months before d

Eletrons., Atom has how many eletrons

Atom has how many eletrons

Describe diversity of ion channel structure, Describe three mechanisms cell...

Describe three mechanisms cells use to produce diversity of ion channel structure and function.

Simple cuboidal epithelium and columnar epithelium, Q. How different is the...

Q. How different is the simple cuboidal epithelium from the columnar epithelium? Where can these epithelia are found in the human body? The simple cuboidal epithelium is made o

Respiratory care on admission of patient, Respiratory Care on Admission (Fi...

Respiratory Care on Admission (First two hours) Patient is incubated and ventilator-dependent.  Monitor blood gases hourly and take corrective action immediately.

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