Free Printable Star Fish Oral And Aboral

Free Printable Star Fish Oral And Aboral Echinodermata Gk spiny skin phylum of exclusively marine invertebrate animals The 6000 known species occur from shores to greatest depths of all oceans Ochre sea star pisaster ochraceus photo by Thomas Kitchin

External part of Body oral ab oral Surface Pedicellaria water vascular system of star fish Download as a PDF or view online for free Patterns of Symmetry Bilateral Symmetry The most ancient animal forms are characterized by radial symmetry in which there is no clear distinction between any one plane section of the animal and another Most of these like the hydra as shown have oral and aboral ends that is a mouth at one end and an excretory opening at the other end

All echinoderms are variations on this oral aboral body plan Fig 3 83 Sea stars class Asteroidea and brittle stars class Ophiuroidea have flat bodies with a broad aboral surface facing up and an oral surface facing down

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Free Printable Star Fish Oral And Aboral

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Department Of Zoology At ANDC Zoology Museum Museum

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2 Asterias Common Name star fish or sea star Distribution abundant in North Atlantic Coast found in India and U S A Habit marine Food microscopic organisms IDENTIFYING CHARACTERS Appearance star shaped pentagonal Body differentiated into oral and aboral surfaces

Starfish Aboral And Oral View Diagram Quizlet

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Start studying Starfish Aboral and Oral View Learn vocabulary terms and more with flashcards games and other study tools Svg Vector Icons

Reading Echinoderms Biology LibreTexts

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On the oral surface identify the tube feet and mouth Figure 2 Left Aboral surface Right Close up of the skin of a sea star Examine the oral surface of a sea star under a dissecting microscope and observe the spines Most of the fleshy projections are skin gills and are used to absorb oxygen Claw like projections called pedicellariae

Reading Echinoderms Biology II Laboratory Manual Lumen

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Module 9 Deuterostomes Search for Reading Echinoderms Phylum Echinodermata Reading Echinoderms are coelomate and deuterostomes Echinoderms include sea stars starfishes sea urchins sand dollars sea cucumbers and sea lilies There are 6 000 species of echinoderms they are all marine

Name Dissection 101 Sea Star starfish PBS

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101 Sea Star starfish Student Checklist Identify the following structures locations Sea stars starfish are echinoderms which are an unusual group of marine animals Use lines

The aboral surface of the sea star which is the side farthest from the sea stars mouth is the first image below The oral surface of the sea star is next which is the sea star s underside that s closest to its mouth The anatomy visible from both of these surfaces has been identified and defined These spines protect the starfish and are part of their internal skeleton Label these on figure 1 Figure 1 External structure Aboral Surface Labels 4 Procedure Oral Surface 7 Turn the starfish over to its oral surface underside 8 Locate the mouth in the center of the central disc Find the ring of oral spines surrounding

The oral surface faces the bottom of the sea The centre of the oral surface contains mouth The aboral surface is directed upwards It is slightly convex The oral and aboral surfaces are not dorsal and ventral sides of the body but right and left sides of a bilaterally symmetrical animal