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

Chlorophyll and osmosis, Hello, I did a experiment: I used 5 salt solution...

Hello, I did a experiment: I used 5 salt solutions (0 g/L; 5 g/L; 10 g/L; 15 g/L; 20 g/L), and in each one I cooked beans (25 g) for 5 minutes. At the end, I measured the absorpti

Anabolism and catabolism, Anabolism and Catabolism Cellular metabolism...

Anabolism and Catabolism Cellular metabolism  has two aspects 1.      Anabolism  :  This aspect includes metabolic  process  by which  complex  cellular  compounds  are

What is the nitrogen waste in amphibian larvae, Q. What is the nitrogen was...

Q. What is the nitrogen waste in amphibian larvae and in the adult animal? The terrestrial adult excretes urea since amphibian larvae are aquatic they excrete ammonia.

What is slime molds in diversity of life, What is Slime Molds in diversity ...

What is Slime Molds in diversity of life? Acrasiomycota and Myxomycota are appropriately named slime molds. They are slimy! The other part of their name comes from the time whe

Explain the sub-culturing, Explain the Sub-Culturing? Microbiological s...

Explain the Sub-Culturing? Microbiological studies require microorganisms in pure form, i.e., a single type of microorganisms should be present in a culture. Maintenance of the

Homologous structures, Homologous structures are the body parts in differe...

Homologous structures are the body parts in different organisms which have similar bones and similar arrangements of the blood vessels, muscles, and nerves and go through similar

Collection of blood, Collection of Blood It is a procedure done rout...

Collection of Blood It is a procedure done routinely for diagnosis. It can be done in various ways. 1) Capillary Sampling  The heel is the most useful area i

Describe the access in heart disease newborn, Describe the access in heart ...

Describe the access in heart disease Newborn? A secure peripheral or central intravenous access is very essential. Inotropic agents with vasoconstrictor properties like Dopamin

What is pupillary reflexes, Pupillary reflexes There are two types of r...

Pupillary reflexes There are two types of reflexes which control the pupillary reaction-the light reflex and near reflex. When light is shown on one eye, there is a constrictio

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