Respiration takes place through external gills (papulae) which are restricted to the aboral surface. Asteroids occur from the Ordovician to the present. ... Book article from: A Dictionary of Earth Sciences madreporite In Echinodermata , a porous, button-shaped process on the aboral surface of the body;
www.encyclopedia.com/doc/1O8-aboral.html www.encyclopedia.com/doc/1O8-aboral.html
Video about "Aboral surface of sea urchin" at Encyclopedia.com, courtesy of YouTube ... Movement of the spines and pedicellaria on the upper surface of L. variagatus.
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Zoology or Animal Biology question: What does aboral surface mean? vgfgmdgmdsomgsmdmgdsmvmdgmlr nsdfgjwgtefygwsfghghjgfswgf.
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Identify the oral and aboral surfaces. On the aboral surface, find the sieve plate (madreoporite), a structure that allows water to enter the water vascular system. Notice the spines that protrude from the skin. The word "echinoderm" means spiny-skinned".
faculty.clintoncc.suny.edu/faculty/michael.gregory/file... faculty.clintoncc.suny.edu/faculty/michael.gregory/files/Bio%20102/Bio%20102%20Laboratory/Animal%20Diversity/Deuterostomes/Deuterostomes.htm
aboral ... medusoid's convex aboral surface is oriented ... Full article >>>; Add the "Quote of the Day" to Your Site or Blog Now! Home - Quote Topics - Quotes of the Day - Quote Keywords - Author Types - Quotation Trivia ...
www.bio-medicine.org/biology-dictionary/Aboral/ www.bio-medicine.org/biology-dictionary/Aboral/
Place the starfish on its aboral surface (side without the little tube feet). Notice the radial symmetry. The starfish is usually composed of five arms, which radiate from the central disc.
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Definition of aboral in the Online Dictionary. Meaning of aboral. Pronunciation of aboral. Translations of aboral. aboral synonyms, aboral antonyms. Information about aboral in the free online English dictionary and encyclopedia. ... aboral - opposite to or away from the mouth; "the aboral surface of a starfish"
www.thefreedictionary.com/aboral www.thefreedictionary.com/aboral
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Comatulids develop a stalk during their postlarval stages (left) but eventually shed it and retain only the topmost segment, a large modified ossicle called the centrodorsal, located in the middle of the aboral surface.
www.nova.edu/ocean/messing/crinoids/3%20Morphology%20St... www.nova.edu/ocean/messing/crinoids/3%20Morphology%20Stalk.html
On the aboral surface the bands of cilia were oriented perpendicular to lines radiating from the apex. Flow visualization using dyes and particles showed that aboral currents flow radially towards the ambitus.
www.biolbull.org/cgi/content/abstract/166/3/574