Banaras Hindu University (BHU) 2006 B.Sc Zoology (hons)part 3 - Question Paper

ZOOLOGY

paper-FUNCTIONAL ANATOMY OF NON CHORDATES

FULL MARKS 75 TIME three HOURS

ans five ques. INCLUDING ques. one WHICH IS COMPULSORY.

illustrate your ans with suitable diagram wherever necessary.



1(A)state weather the subsequent statements are actual or false giving cause in 2-3 sentences:


(a)all non chordates are invertebrates where as all invertebrates are not non chordates. [marks4*2]

(b)central nervous system in vertebrates is solid.

(c)Euglena undergoes transverse binary fission.

(d)sol-gel theory for amoeboid movement was provided by Dellinger


(B)define the subsequent [marks 5*1]

(a)metamerism (b)coral reefs (c)zooids (d)osphiridium (e)diplerula


(C). draw a neat well lebelled diagram to show different stages in development of the medusa in obelia [marks 2]


2.give an account of origin of metazoa[marks 15]


3.describe the kinds of coelom in various invertebrate groups comment upon significance of coelom [marks 15]


4.describe the life history of Taenia solium with the help of suitable diagrams [marks15]


5. define the various modes of reproduction of protozoa[ marks 15]


6.write short notes on any 3 of the subsequent [marks3*5]

(a)Trochophore larva and its significance

(b) zoological importance of Peripatus

(c)salient features of a ctenophore

(d) torsion

7.Enumerates the salient features of the phylum arthropoda.give an outline classification of the phylum up to classes ,giving distinguish features of every class[marks15]

Earning:   Approval pending.