aboral वाक्य
उदाहरण वाक्य
मोबाइल
- Gas exchange also takes place through other gills known as papulae, which are thin-walled bulges on the aboral surface of the disc and arms.
- Mobilids possess a conspicuous " adhesive disk " at the aboral ( posterior ) pole, enabling the organism to attach itself temporarily to its host organism.
- The authors found that about half of the animal's aboral surface was damaged and large pieces of mesoglea were missing, presumably removed by the argonaut.
- The Cestida ( " belt animals " ) are ribbon-shaped planktonic animals, with the mouth and aboral organ aligned in the middle of opposite edges of the ribbon.
- Juvenile cusk-eels have been found to associate with " P . placenta ", either hiding underneath it or between the long spines on its aboral surface.
- Ciliature on the body is restricted to a posterior wreathe called the " trochal band, " made up of three rings of cilia girdling the aboral region of the cell.
- Pedicellariae are compound ossicles that articulate with other ossicles and protrude from the aboral ( upper ) surface of some sea stars ( and also the test of sea urchins ).
- "Bazinga rieki " has a thick round translucent and colourless body, the aboral ( upper ) surface of which is covered in tiny warts with yellow centres.
- The long, sharp spines on the sides of the starfish's arms and upper ( aboral ) surface resemble thorns and create a crown-like shape, giving the creature its name.
- They are cigar-shaped but slightly broader at the " front " end, which is the aboral, vegetal-pole end and eventually attaches to a substrate if the species has a polyp stage.
- There is a pair of comb-rows along each aboral edge, and tentilla emerging from a groove all along the oral edge, which stream back across most of the wing-like body surface.
- Transmission occurs by direct contact of infected and uninfected hosts, and also by active swimming of trichodinids from one host to another . " Trichodina " cells swim with the aboral surface facing forwards.
- These two species have different aboral spines and coloration which allows one to distinguish between the species . " Evasterias troscheli " may be confused with " Pisaster ochraceus " at times as well.
- The floats are not obvious in this species from Haeckel's description, and have not been formally described, although the strange hat-like structure on the hydrozoan's aboral side may have this function.
- Commensal associations sometimes play part on this echinoderm's life; animals such as " Periclimenes " shrimp are sometimes found commensally on the oral or aboral surface of the animal, picking up mucus and detritus.
- The stalk grows out of the " aboral " surface, which forms the upper side of the animal in starfish and sea urchins, so that crinoids are effectively upside-down by comparison with most other echinoderms.
- Paxillae are small pillar-shaped ossicles with flat tops sometimes found covering the aboral surface of sea stars such as " Luidia ", " Astropecten " and " Goniaster " that live underneath sediment.
- Lobates have eight comb-rows, originating at the aboral pole and usually not extending beyond the body to the lobes; in species with ( four ) auricles, the cilia edging the auricles are extensions of cilia in four of the comb rows.
- As a homeobox or Hox gene it plays a role in organization and differentiation along the axis of symmetry in the embryonic development of eumetazoans; in cnidarians, it appears to determine the position of mouth-facing ( oral ) and opposite-facing ( aboral ) sides of the organism.
- The sack-like body of the " Ber�e " species may be cylindrical in cross section, or compressed to varying amounts according to species, while " Neis " is somewhat flattened and characterized by a pair of trailing gelatinous " wings " that extend beyond the aboral tip.
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