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

Will argon tend to form bonds with other elements, The atomic number of arg...

The atomic number of argon is 18. Will argon tend to form bonds with other elements? Describe your answer. Argon will not tend to form bonds with other elements. With an atomi

Denaturizing be classified regarding its reversibility, How can denaturizin...

How can denaturizing be classified regarding its reversibility? Ans) Protein denaturizing can be a reversible or irreversible process, i.e., it can be possible or impossible to

Why in the f1 generation is one of the colors missing, Considering hybridiz...

Considering hybridization in a trait like the color of the flowers of a given plant species (red/yellow) conditioned by a pair of different alleles in relation to complete dominanc

What is the action mechanism of the antibiotic penicillin, What is the acti...

What is the action mechanism of the antibiotic penicillin? Penicillin, discovered by the Scottish doctor Alexander Fleming in 1928, is a drug that inhibits enzymes essential fo

Explain about the ascomycota - fungi, Explain about the Ascomycota - Fungi?...

Explain about the Ascomycota - Fungi? Ascomycota - Ascomycetes or sac-like fungi have septate mycelium. These are called so because sexual reproduction involves the formation o

Why is this area more vulnerable to damage than others, A small family was ...

A small family was traveling in the car when a minor accident happened. The children in the back seats were wearing lap belts, but still sustained numerous bruises about the abdome

What progeny are expected in the f1, Cut wings (ct) is an X chromosome (sex...

Cut wings (ct) is an X chromosome (sex linked) recessive mutant of D melanogaster. Antennaless (al) is an autosomal recessive mutant. A cut, antennaless (homozygous) female is mate

Explain sedationin details, Explain Sedationin details? Intubation and ...

Explain Sedationin details? Intubation and mechanical ventilation is associated with a significant degree of discomfort. In addition, many of the procedures done routinely in I

Define requirements for underwater weighing method, Define Requirements for...

Define Requirements for underwater weighing method? • The equipment required to perform hydrostatic measurements is bulky and maintenance intense. • A large tank of water, usu

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