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Total 9 results were found for your query cephalochordate.

  • Zoology

    AFFINITIES OF UROCHORDATES

    ... of muscle band. Thus, the Urochordates show close relation with Cephalochordates.   Urochordates Differ With Other Chordates:   Presence of retrogressive metamorphosis. Absence of segmentation. ...
    Created on 07 July 2017
  • Zoology

    REPRODUCTION IN AMPHIOXUS

    Amphioxus is a Cephalochordate animal. Its Life history in the early stages shows resemblance with ascidians. HATSCHE’K WILSON. CONKLIN’ worked on the part of embryogenesis of Amphioxus. ‘CONKLINS’ work ...
    Created on 06 July 2017
  • Zoology

    ENDOSTYLE IN AMPHIOXUS

    In the Urochordate and Cephalochordate animals the ventral side of the pharyhx wilI contains endostyle. It is a glandular ciliated groove present on the floor of the pharynx. This contains alternate bands ...
    Created on 06 July 2017
  • Zoology

    NOTOCHORD IN AMPHIOXUS

    ... the notochord. This notochord is covered by a sheath of connective tissue.   In Amphioxus the notochord extends from anterior end to posterior end, hence it is placed in Sub phylum Cephalochordate. ...
    Created on 06 July 2017
  • Zoology

    EXTERNAL CHARACTERS OF AMPHIOXUS

    Amphioxus belongs to Cephalochordate. In 1778 Amphioxus was first discovered and described by Palias. He called it a Molluscan animal. In 1834, it was described as a chordate animal by Costa. He called ...
    Created on 05 July 2017
  • Zoology

    CLASSIFICATION AND SYSTEMIC POSITION OF CEPHALOCHORDATE

    ...    Thus cephalochordates will show many primitive characters.   SPECIAL CHARACTERS OFCEPHALOCHORDATA   Because of its ciliary mode of feeding, the pharynx is elaborated with many gill slits. ...
    Created on 05 July 2017
  • Zoology

    GENERAL CHARACTERS OF CEPHALOCHORDATA

    Cephalochordata includes two genera, 1. Asymmetron and 2. Branchiostoma (Amphioxus). Cephalochordates are small fish like animals which show Chordate characters. The notochord extends the entire length ...
    Created on 04 July 2017
  • Zoology

    BIOLOGY OF CHORDATES

    ... (hemichordate, Cephalochordate & fishes) visceral clefts help in feeding as well as assist in respiration. In certain terrestrial forms these re modified into endocrine glands.   Origin of Chordates ...
    Created on 04 July 2017
  • Zoology

    CHORDATES

    CHORDATE ORIGIN OF CHORDATES GENERAL CHARACTERS OF CHORDATES BIOLOGY OF CHORDATES CLASSIFICATION OF PHYLUM CHORDATE CEPHALO CHORDATE GENERAL CHARACTERS OF CEPHALOCHORDATA CEPHALOCHORDATA: ...
    Created on 08 June 2017