what are three types of symmetry,give a animal example for each type?

Answer 1

bilateral symmetry- arthropoda,annelida,chordates
radial symmetry- porifera,coelenterates
biradial symmetry -ctenophora
asymmetry- protozoa,plants,some porifera

Answer 2

Types Of Body Symmetry

Answer 3

Asymmetry – Although it is not immediately obvious why an asymmetric body form should be advantageous, it is interesting to note that the only group within the Animal Kingdom that possesses a truly asymmetric body form are the sponges (Phylum Porifera). Porifera are a primitive group with limited specialization, in many ways little removed from the colonial protozoans that are thought to have given rise to members of the Kingdom Animalia.

Radial symmetry – The vast majority of organisms displaying radial symmetry are anchored to the substrate (often referred to as a sessile lifestyle, sort of like couch potatoes). Although all lateral surfaces have equal likelihood of interacting with the environment in a meaningful manner, the “top” and “bottom” of the organism have very different functions. The lower surfaces are often modified to provide a stable, concrete point of attachment to some solid surface, while the upper surfaces are often modified for the gathering of resources (usually food). Because lateral organization is relatively unimportant but vertical organization is meaningful, symmetry around this central vertical axis becomes the most useful body plan.

Bilateral and biradial symmetry – A bilaterally symmetric body plan is an adaptation to a moving, directional existence. Not only are up and down important directions, so are left and right, top and bottom, and front and back. The front (anterior) portion of the organism encounters the environment first as it moves and differentiation of sense organs (cephalization) in the anterior regions becomes significant. Locomotion is accomplished by providing a propulsive force against air or water (in an aerial or aqueous medium) or the surface of the earth (for earthbound terrestrial organisms and benthic aquatic organisms).

Scypha, wool sponge (asymmetry); jellyfish, starfish, sea urchin (radial symmetry); crayfish, grasshopper, snail, grassfrog, lizard, mouse (bilateral symmetry).

Answer 4

Radial - Octopus
Bilateral - Humans
Asymmetry - Sea sponges, from phylum Porifera

Answer 5

Chitinous exo-skeletons,---Beetles Bony Skeletons,--- Mammals Cartiliginous Skeletons,--- Sharks, and Rays