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

What is colloids and suspensions , What is Colloids and Suspensions ? ...

What is Colloids and Suspensions ? Colloids and Suspensions :  Colloids and suspensions are mixtures in which larger particles replace solutes. Colloids, or colloidal suspe

Vascular tissues, VASCULA R TISSUES (= FLUID TISSUES) - The vascula...

VASCULA R TISSUES (= FLUID TISSUES) - The vascular tissues are of two types: blood and lymph.

Immunity, We have no antibodies against any blood group when we are born st...

We have no antibodies against any blood group when we are born still we say that some blood groups are incompatible for us.why?

Draw a diagram of transverse section of the spinal cord, Draw a diagram of ...

Draw a diagram of transverse section of the spinal cord showing reflex are and label the following parts: (i) Afferent nerve fibre (ii) Grey matter (iii) Motor nerve fibre

Michaelis menten, Regulation of enzymatic action equations for competitive,...

Regulation of enzymatic action equations for competitive, non-competitive, uncompetitive inhibition and mixed reaction

What is the dosage and cost of micafungin, Dosage and cost of micafungin ...

Dosage and cost of micafungin The recommended dosage of micafungin is 50 mg/day for prophylaxis and 150 mg/day for treatment, both given IV as a single dose over 1 hour.

Define about anthropometric and physiological, Define about Anthropometric ...

Define about Anthropometric and Physiological? Various physiological and anthropometric measurements give us an indication of the present status of an individual based on which

Common features of eye and limb development, Common Features of Eye and Lim...

Common Features of Eye and Limb Development A comparison of the embryonic development of the very much different organs, the eyes and the limb, points to various interesting

Determine the term - origin of life on earth, Based on your reading of the ...

Based on your reading of the article "Origin of Life on Earth" which of the following is a false statement regarding how life developed? A. As proteins are needed for the repli

State the medial pterygoid, Medial pterygoid Muscle bounds the pterygom...

Medial pterygoid Muscle bounds the pterygomandibular space medially which is entered when an inferior alveolar nerve block is administered. Infection of this space is dangerous

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