Metazoan branches, Biology

Assignment Help:

Metazoan Branches

The Kingdom Animalia comprises all the multicellular animals (metazoans). These are divided into three branches:

  1. Mesozoa
  2. Parazoa
  3. Eumetazoa

The Mesozoa comprise a tiny single phylum (Phylum Mesozoa); the Parazoa comprise two phyla a tiny single phylum Placozoa and the rest make up the phylum Porifera comprising the sponges. Most of the metazoans come under the major branch Eumetazoa You must note that the cellular layers of Porifera (sponges) are not homologous to the germ layers of Eumetazoa. Their developmental pattern is also quite different from that of the Eumetazoa. The Parazoa are regarded as an early evolutionary side branch of the animal kingdom, which did not give rise to any other group of animals.


Related Discussions:- Metazoan branches

Non migrainous vascular headaches, Non Migrainous Vascular Headaches Th...

Non Migrainous Vascular Headaches This headache associated with dilation of the cranial arteries and can be induced by a wide variety of diseases and conditions. The most commo

Give the causative organism of bacillary dysentery, Give the causative orga...

Give the causative organism and symptoms of Bacillary Dysentery • Bacillary dysentery is caused by  Shigella sp. (Shigella sonnei, S. dysenteraei). Incubation period is

Explain the air samplers - air sampling, Explain the Air Samplers - Air Sam...

Explain the Air Samplers - Air Sampling? Air Samplers, e.g., all glass impinger and the Andersen sieve samplers may be used. Volume of the air sampled is known. In all glass im

Measuring ecosystem diversity, Measuring ecosystem diversity is not easy, a...

Measuring ecosystem diversity is not easy, and ther e is no definite index for its measurement. It is generally assessed by the measure of species diversity in an ecosystem, often

Explain nutrient cycling and their processes, Explain Nutrient Cycling and ...

Explain Nutrient Cycling and their processes? Two major processes are common to all ecosystems: nutrient cycling and the flow of energy. These two functions are carried out by

What is the salivary digestive enzyme, What is the salivary digestive enzym...

What is the salivary digestive enzyme? Which type of food does it digest and into which smaller molecules does it transform the food? The salivary hydrolase is called as saliva

Platyhelminthes, tell me the general characters of monopisthocotylea

tell me the general characters of monopisthocotylea

Alkaline indigestion, A lk a l in e indigestion The disease occurs...

A lk a l in e indigestion The disease occurs due to the consumption of excessive amount of protein rich concentrate or non protein nitrogenous substance like urea, and is

Explain the use of bacterial vaginosis in pregnancy, Use of Bacterial vagin...

Use of Bacterial vaginosis In pregnancy  Bacterial vaginosis has been associated with premature labor and complications of delivery, and symptomatic bacterial vaginosis in preg

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