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

Define mushroom poisoning, Q. Define Mushroom Poisoning? Mushroom poiso...

Q. Define Mushroom Poisoning? Mushroom poisoning is caused by the consumption of raw or cooked fruiting bodies (mushrooms, toadstools) of a number of species of higher fungl.

Explain functional properties of protein hydrolysis, Explain functional pro...

Explain functional properties of protein hydrolysis Hydrolysis of food proteins using proteases (trypsin, chymootrypsin, papain and thermolysin) alters their functional propert

Titanium and its alloys - alloplastic implant materials, Titanium and Its A...

Titanium and Its Alloys - Alloplastic implant materials These have been used primarily for their corrosion resistance and biocompatibility. Titanium exists in nature as a pure

Mode of nutrition, illustrate the mode of nutrition in parrot

illustrate the mode of nutrition in parrot

Name the two hormones produced by the pancreas, Name the two hormones produ...

Name the two hormones produced by the pancreas and say (a) in what circumstances, (b) in what way, they adjust the glucose concentration in the blood.

What is cyanotic spells, What is Cyanotic Spells ? Hypercyanotic or Cy...

What is Cyanotic Spells ? Hypercyanotic or Cyanotic spell is a pediatric emergency, which requires prompt recognition, and intervention to prevent disabling cerebro-vascular i

Describe about the term - neuropsychological assessment, Describe about the...

Describe about the term - Neuropsychological assessment Neuropsychological assessment has its roots in neurology, the branch of medicine that focuses on the nervous system and

What is community and workplace interventions, Q. What is Community and Wor...

Q. What is Community and Workplace Interventions? Community Based Interventions Involves health education regarding benefits of physical activities, dietary changes, includi

Define role of iron in controlling gene expression, Define Role of Iron in ...

Define Role of Iron in Controlling Gene Expression? Iron metabolism is regulated by a complex co-ordinate mechanism. Recent evidence supports specific past-transcriptional mech

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