University:
Brigham Young University
Course:
BIO 130 | Biology
Academic year:

2023
Views:

155

Pages:

2
Author:

SpaceSerenade

Balavolox sux if a forerunner of chordaten Justify the istatement -15m Balanoglospur Chordater a forerunner of that if ustands the Pivotal staße for the direct line of Chordate Evolution. But this claim PA not univena Accepted nowadays. univenally 17 The anatomical peculariter of Balanoglossus resemble Closely specially to Echinodermato Balanoglossye many Character wore found in both non-Chordate & Chordates Pecularities with chordater PROBOSCIS COLLAR BRANCHIOGENH -TAL REGION ANUS GENITAL REGION HEPATIC REGION FIG-BALANOGLOSSUS The resemblance of nervous system of Chordates & Balane Glorsus are Bath Are Epidermal 10 bit isiqificant nature and Balanoglossus tige a dorsal cord, thouch a ventral Cord Unlike any other chordate 91 aleo present. pharynced ill- gill- islet 8 Chordate feature present in an Esseritial Balanoglosius. 4) Radial Cleavage & Enterocolous Codam 3 The celiory method y feediné-like other protochordater Conerner "Balanoglossus should be to entes 298 the disect fore sunner of Chordater. on thiệt, the Some chordates. initial appearance f Characters may apparanerdly call it an Forerunner of Chordater" Pecularities with Non-chordate But, 1) The absence of Notochord, 3 Ell-slot Dorsal position: pharyngeal gill-. Lack Cord & of distinct dorsat tubular nerve many othes features, julify that it On the direct line of does not istand on Chordater Evolution. In conclusion, The claim of wilder and Hadzi, that it のの direct line of vertebrate Evolution PA 91 untenable. 2) It may be suggested that Balanoglosias and other chordates are & sunning on the Same field, but not in the same track.