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Pentaradial Symmetry

A type of radial symmetry, characteristic of echinoderms, in which body parts are arranged along five rays of symmetry.

Pentaradial Symmetry is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Pentaradial Symmetry books and related discussion.

Suggested Pdf Resources

Animal Groups Deuterostomes Deuterostomes Indeterminant
Pentaradial symmetry. – Bilateral larva. – No head or brain.
Biology 122L – Invertebrate zoology lab Echinoderm diversity lab
remarkable pentaradial symmetry sets them apart from the other major group of radial animals, the cnidarians.
Phylogenetic diversity of animals
Diploblasts – evolution of tissues and symmetry.
AN EVOLUTIONARY SCENARIO FOR THE ORIGIN OF
ECHINODERMS AND INVERTEBRATE CHORDATES
This blue sea star, Linckia laevigata, shows the pentaradial symmetry of most echinoderms. 40-1 Echinoderms. 40-2 Invertebrate Chordates.

Suggested News Resources

Natural La Jolla: Sea stars are models of engineering, efficiency
Most starfish have five arms (pentaradial symmetry) that radiate from a central disk. Many people are familiar with the amazing regeneration capabilities of the starfish.

Suggested Web Resources

Symmetry in biology - Wikipedia, the free encyclopedia
Being bilaterian animals, however, they initially develop biradially as larvae, then gain pentaradial symmetry later on.
Pentaradial Symmetry - Definition of Pentaradial Symmetry
A type of radial symmetry, characteristic of echinoderms, in which body parts are arranged along five rays of symmetry.
The Echinoderms
Describe pentaradial symmetry and its applications to the lifestyles of the echinoderms. 2.
Z250 - Echinoderm Clade (2011)
Biology of Animals & Plants - Echinoderms

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