Symmetry - metazoa, Biology

Assignment Help:

Symmetry - Metazoa

All living organisms have some body shape and form. The general body plan of animals may be organized in one of several ways . Arrangement of parts or organs on either side of an imaginary dividing line or around a common axis or radially around a point so that opposite parts are mirror images of one another is called symmetry. There are two broad divisions of symmetry,

(i) Primary, or embryonic

(ii) Secondary, or adult.

2039_Symmetry - Metazoa.png

Figure:  Different types of body symmetries

The latter may or may not be the same as the primary one. For example, the larva of starfish is bilaterally symmetry but the adult starfish is radially symmetrical. The primary symmetry is bilateral and secondary symmetry is radial. With regard to symmetry animals can be basically of five types

  • Asymmetrical
  • Spherical
  • Bilateral
  • Radial and
  • Biradial

 

 


Related Discussions:- Symmetry - metazoa

Which functional groups ionization stabilized by resonance, In which of the...

In which of the following functional groups ionization is stabilized by resonance? Select one: a. Carboxyl b. Hydroxyl c. Amine d. Aldehyde e. All of the above

Electron transport chain, ELECTRON TRANSPORT CHAIN All processes requir...

ELECTRON TRANSPORT CHAIN All processes require energy. In living cells, we constantly use energy for a number of biochemical reactions e.g. muscular movements, synthesis  of ne

Homework, Determine sequence weights for the sequences ACTA, ACTT, CGTT, an...

Determine sequence weights for the sequences ACTA, ACTT, CGTT, and AGAT by using Thompson, Higgins, and Gibson method

Define the disc electrophoresis, Define the Disc Electrophoresis? Disc ...

Define the Disc Electrophoresis? Disc electrophoresis has improved resolution and strong bands are obtained. It requires a two-gel system and several different buffers. The run

Explain what is cyanosis and polycythemia, Explain what is Cyanosis and pol...

Explain what is Cyanosis and polycythemia? Cyanosis and Polycythemia: Central cyanosis involving the mucous membranes and trunk along with the lips and extremities in absence

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

Define the basic function of keratin in the epidermis, Q. What is the funct...

Q. What is the function of keratin in the epidermis? The epidermis is the outer layer of the skin made of epithelial tissue in the epidermis there are keratin-secreting cells (

Is total volume of the reaction is 30 micro liters, You have a 10x enzyme b...

You have a 10x enzyme buffer that you are to use in a particular reaction. The total volume of the reaction is 30 micro liters. How much of the 10x buffer should you add so that th

Define the term- new life for ancient dna, Based on your reading of the art...

Based on your reading of the article "New Life for Ancient DNA" which of the following is a  false statement in regards to the comparison among genes in extinct and living species?

Write short notes on urine, Write short notes on Urine? The concentrate...

Write short notes on Urine? The concentrated filtrate produced by the kidney is called urine, and is composed mainly of water, urea, toxins, and mineral salts. Urine from the c

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