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

Describe the term - ambulacral groove, Describe the term - Ambulacral groov...

Describe the term - Ambulacral groove The groove that runs down the oral surface of each echinoderm arm and contain the tube feet. If the region contains a visible furrow, or gr

Explain the concept of dressing, Explain the concpet of Dressing Dressi...

Explain the concpet of Dressing Dressing: Means medicine wound covering; a bandage or other sterile covering is put on a wound to protect it from infection or further damage.

Cell, how does a cell work ?

how does a cell work ?

Explain the bunsen burner, Explain the Bunsen Burner? It is a type of g...

Explain the Bunsen Burner? It is a type of gas burner that gives very hot flame by allowing air to enter at the base and mix with the gas. It is used - (a) For sterilizing i

Deficiency diseases-predisposing factors, Predisposing factors The inc...

Predisposing factors The incidence of metabolic diseases in cows and buffaloes increases as the milk production increases and the herd size becomes larger. The highest inciden

What are the symptoms associated with campylobacteriosis, What are the symp...

What are the symptoms and foods associated with campylobacteriosis?  Campylobacteriosis incubation period: 2-5 days after ingestion of contaminated food.  Symptoms: Diarrhoe

Explain the buccal perforations, Buccal Perforations Buccal concavitie...

Buccal Perforations Buccal concavities in the bone can result in some threads of the implant being exposed. Where these are very circumscribed and covered with thick and well-

Bilateral cleavage, Bilateral Cleavage In some animals (for example tu...

Bilateral Cleavage In some animals (for example tunicates and nematodes, although in different way), the arrangement of 4 blastomeres after second cleavage is almost radially

Explain bone healing process in nutritional care, Explain Bone Healing Proc...

Explain Bone Healing Process in Nutritional Care? Protein is essential for callus formation, calcification and bone healing especially in cases of orthopaedic surgery. The prot

Onset of puberty in male, ONSE T OF PUBERTY IN MALE Puberty is the ...

ONSE T OF PUBERTY IN MALE Puberty is the period when reproductive organs become functional. It is attained at the age of 13-16 yrs. It is stimulated by testasteron. I

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