ZOO/I/EC/01 Student's Copy
2 0 1 8
CBCS
1st Semester
ZOOLOGY
FIRST PAPER
Biosystematics and Biology of Non-chordates
Full Marks 75
Time 3 hours
PART A—OBJECTIVE
Marks 25
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 10
Tick the correct answer in the brackets provided 1×10=10
1. Taxonomic hierarchical system was developed by
Corolus filus
E. P. Odum
Carl von Linnaeus
Cavalier-Smith
2. The basic unit of taxonomy is
phylum
class
genus
species
/20 1 Contd.
3. Coral reefs are underwater structures made from
magnesium carbonate
corallite
calcium carbonate
All of the above
4. Circular barrier reef without their central landmass movement occurs by
the formation of finger-like temporary processes is called
atoll
Great Barrier Reef
fringing reef
None of the above
5. The chief excretory waste of earthworm is
water
urea
ammonia
creatinine
6. The division of individual Protozoa into two approximately equal parts is
called
plasmotomy
plasmogamy
binary fission
multiple fission
7. Flame cells are found in the phylum
Nematoda
Platyhelminthes
Arthropoda
All of the above
8. Penial setae is the reproductive organ in
Platyhelminthes
Nematoda
Ctenophora
Porifera
ZOO/I/EC/01/20 2 Contd.
9. What type of canal system is found in sponges like Scypha?
Ascon type
Sycon type
Leucon type
None of the above
10. The hormone involved in insect metamorphosis is
parathormone
oxytocin
juvenile hormone
calcitonin
SECTION—B
Marks 15
Write short notes on the following 3×5=15
1. Rules of binomial nomenclature
OR
Three-domain system
2. Pseudopodial movement in Protozoa
OR
Cell crawling
3. Fringing reefs
OR
Medusoid zooids
4. Morphological features of Onychophora
OR
Reproductive system in Annelida
5. Complete metamorphosis in insect
OR
Water vascular system in Asterias
ZOO/I/EC/01/20 3 Contd.
PART B—DESCRIPTIVE
Marks 50
The figures in the margin indicate full marks for the questions
1. Brief an account of biological species concepts. Write in detail taxonomic
hierarchy. 2+8=10
OR
Write a note on six-kingdom classification concepts. 10
2. Classify non-chordates up to classes with examples. 10
OR
Describe various modes of reproduction in protozoans.
3. Describe the various modes of symmetry in animals. 10
OR
Describe the canal system found in sponge with suitable diagram. 2+8=10
4. Write down the specialized features of Ctenophora with its affinities. 8+2=10
OR
Describe the excretory system of Pheretima posthuma with an illustrated
diagram. 10
5. Write on the following 5+5=10
Nephridia of Periplaneta americana
Book lungs of Arthropoda
OR
Explain torsion in Gastropoda. Describe the processes of torsion and
detorsion. 6+4=10