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

Describe the meaning of regulating evolution, Based on your reading of the ...

Based on your reading of the article entitled "Regulating Evolution", which of the following is a false statement? A. Individuals who are resistant to the malaria-causing para

Bacterial diseases-pigs, Pigs This is a sub-acute or chronic infection ...

Pigs This is a sub-acute or chronic infection manifested by abortion, sterility, high piglet mortality and orchitis in pigs. Br. suis causes brucellosis among pigs. It is morph

What are the joints, What are the joints Joints are the place of artic...

What are the joints Joints are the place of articulation between two or more bones, or between a bone and a cartilage. Due to the presence of a number of joints, the movement

Explain academic dietitians, Teaching / academic dietitians Dietitians ...

Teaching / academic dietitians Dietitians process knowledge on all  aspects  01  nutrition  and dictetics.  They constantly keep  themselves updated  in  the necessary  informa

Determine the importance of educational history- assessment, Determine the ...

Determine the importance of Educational History- assessment  A complete school history includes information regarding a child's current grade placement, any grade repetitions o

Etiology, Etiology -Although this approach less desirable, it is useful...

Etiology -Although this approach less desirable, it is useful, short-term option if the etiology of the condition remains unknown. - The patient must inform about what will

State the strengths of brief screening measures, Strengths of Brief Screeni...

Strengths of Brief Screening Measures 1) Inexpensive, rapid, portable 2) Needs less training in administration and interpretation 3) Differentiating between dementia and

What are the functions of the spleen, What are the functions of the spleen?...

What are the functions of the spleen? Why is a total splenectomy (surgical removal of the spleen) compatible with life? The spleen has many functions: it participates in the de

Explain about battery, Explain about Battery Battery:  Two electrodes ...

Explain about Battery Battery:  Two electrodes (zinc and carbon) placed in electrolyte (dilute sulfuric acid).  Chemical reactions in electrolyte force positive charges to

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