ZOO/I/01 Student's Copy
2 0 1 8
Pre-CBCS
1st Semester
ZOOLOGY
FIRST PAPER
Biosystematics and Biology on Non-Chordates
Full Marks 55
Time 2½ Hours
PART A—OBJECTIVE
Marks 20
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 5
Tick the correct answer in the brackets provided 1×5=5
1. The five-kingdom classification was proposed by
Ernst Haeckel
Charles Darwin
Carolus Linnaeus
Carl Woese

2. Flame cells are present in the phylum
Nematoda
Echinodermata
Platyhelminthes
None of the above
3. Metazoans are known to originate during
Metazoic
Mesozoic
Ediacaran
Jurassic
4. Nephridia are a characteristic feature of phylum
Arthropoda
Nematoda
Vertebrata
None of the above
5. Book lungs are present in the phylum
Platyhelminthes
Arthropoda
Annelida
Echinodermata
ZOO/I/01/188 2 Contd.
SECTION—B
Marks 15
Write short notes on the following 3×5=15
1. Three rules of binomial nomenclature proposed by Linnaeus
2. Flagellar locomotion in Protozoa
3. Polymorphism in hydrozoan
4. External characters of Pheretima posthuma
5. Hormones involved in metamorphosis of insect
PART B—DESCRIPTIVE
Marks 35
The questions are of equal value
1. Write a note on six-kingdom classification giving suitable examples.
OR
Write a note on the three-domain system of classification.
2. Classify the Phyla Porifera, Platyhelminthes and Nematoda up to class with
suitable examples.
OR
Give an account of asexual reproduction in Protozoa with suitable examples.
ZOO/I/01/188 3 Contd.
3. What is coral? Explain the different types of coral reef with suitable diagram.
OR
What are the different types of canal system present in cnidarians? Explain
them with suitable diagram.
4. Explain the affinities between the phyla Ctenophora and Onychophora.
OR
Explain the excretory system present in the phylum Nematoda with suitable
diagrams.
5. Explain torsion and detorsion in gastropods with their significance.
OR
Write a note on the arthropod respiratory system with special reference to the
tracheal system of respiration.