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

Explain in brief about the neuropsychological test batteries, Explain in br...

Explain in brief about the neuropsychological test batteries Neuropsychological tests have the same standardisation requirements as all psychological tests. That is, there is t

Define eggs as a rich source of protein, Define Eggs as a rich source of pr...

Define Eggs as a rich source of protein? Roughly, the chicken egg consists of 11% shell, 31% yolk and 58% white. Liquid whole egg consists of 65% white and 35% yolk. The primar

Defence mechanisms of the host, Defence mechanisms of the host The hea...

Defence mechanisms of the host The healthy animal is protected from pathogenic organisms present in the environment by virtue of the effective immune mechanism present from bi

Explain vitamin B complex, Vitamin B Complex The vitamin B complex comp...

Vitamin B Complex The vitamin B complex comprises the vitamins B 1 , B 2 , B 6 and B 12 as well as the vitamin B factors biotin, folic acid, nicotinic acid and its amide as w

Explain about human sperm, Which one of the following statements about huma...

Which one of the following statements about human sperm is correct? 1. Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilis

A disulfide bond can form between any two amino acids, A disulfide bond can...

A disulfide bond can form between any two amino acids that have sulfur in their side-chain.

Illustrate adaptation to terrestrial life, Q. Why can the allantois be cons...

Q. Why can the allantois be considered an adaptation to terrestrial life? The allantois is an adaptation to dry land because in embryos of oviparous terrestrial beings like bir

Nutrition, type of nutrition in platypus and ant eater

type of nutrition in platypus and ant eater

Define precautions for estimation of vitamin c in chillies, Define Precauti...

Define Precautions for Estimation of Vitamin c in Chillies? 1. Rinse all glassware with 3% metaphosphoric acid before you begin your practical and subsequently each time you wa

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