Developmental patterns - metazoa, Biology

Assignment Help:

Developmental Patterns - Metazoa

The metazoans or Animalia can be divided into two groups on the basis of body symmetry. The bilateral metazoans can be divided into two great assemblages: the Protostomia and the Deuterostomia.

Platyhelminthes, Molluscs, Annelida, Arthropods and a number of minor phyla are classified as Protostomes while Echinodennata, Chordata and at least two minor phyla are included in the deuterostomes. The features used to place animals in these groups are largely developmental.


Related Discussions:- Developmental patterns - metazoa

Developmental biology, pioneers of developmental biology and their contribu...

pioneers of developmental biology and their contribution

Principles of darwinism, PRINCIPLES OF DARWINISM - 1 .       OVERPROD...

PRINCIPLES OF DARWINISM - 1 .       OVERPRODUCTION (PRODIGALITY) - All organisms have enormous fertility and they multiply in geometric ratio. Examples of over product

Blastulation, BLASTUL A TIO N - Type of blastula is blastocyst or...

BLASTUL A TIO N - Type of blastula is blastocyst or trophoblastula. Outer layer of cell becomes flat and form trophoblast or trophoectoderm which receives nutritive ma

Explain about the sucralose - artificial sweeteners, Explain about the Sucr...

Explain about the Sucralose - artificial sweeteners? Sucralose (1, 6-dichloro-1, 6-dideoxy-β-D-fructofuranosyl-4-chloro-4-deoxy-α-D- galactopyranoside) is the only non-nutritiv

Explain management strategies for genetically modified crops, Explain Manag...

Explain Management strategies for genetically modified crops? Crops that have been genetically modified (GM) to be toxic to insect pests are now common in US agriculture. Make

Explain the width of the periimplant keratinized mucosa, Width of the Perii...

Width of the Periimplant keratinized Mucosa Clinical and experimental studies have failed to support the concept of an "adequate width" of keratinized tissue adjacent to natura

How is the lac operon regulated by the sigma factor, 1. Many bacterial gene...

1. Many bacterial genes show adaptive regulation of their transcription. a) How is the lac operon regulated by the sigma factor? b) How is the lac operon regulated by lactose

Poultry and duck diseases-hydropericardium syndrome, Hydropericardium syndr...

Hydropericardium syndrome Hydropericardium syndrome (HPS), known as Leechi disease, is caused by Avian Adenovirus 4. HPS has been responsible for high mortality ranging from 6

What is the digestive enzyme that acts within the stomach, Q. What is the d...

Q. What is the digestive enzyme that acts within the stomach? Which type of food does it digest? What are the cells that produce that enzyme? The digestive enzyme that acts in

Experiment of a study of broken rock, A study of broken rock Break open...

A study of broken rock Break open several rock specimens. Compare the appearance of freshly broken surfaces with the Heather-worn outside of the rock. The rocks may be safely b

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