ZOO/II/02 Student's Copy
2 0 1 8
Pre-CBCS
2nd Semester
ZOOLOGY
Paper ZL-II
Biology of Chordates and Comparative Anatomy
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. Which of the following is not a protochordate?
Balanoglossus
Herdmania
Myxine
Branchiostoma
/378 1 Contd.
2. Which of the following types of locomotion is seen in eel?
Thunniform locomotion
Ostraciform locomotion
Anguilliform locomotion
Gliding
3. Monotremes are well-known as
egg-laying reptiles
egg-laying mammals
egg-laying birds
None of the above
4. Three-chambered heart is found in
Scoliodon
frog
turtles
crocodiles
5. A cartilage having glass-like semitransparent matrix and fine collagen
fibres is
hyaline cartilage
white fibrous cartilage
elastic cartilage
calcified cartilage
ZOO/II/02/378 2 Contd.
SECTION—B
Marks 15
Write notes on the following 3×5=15
1. Salient features of Protochordata
2. Neoteny and paedogenesis
3. Affinities of birds
4. Functions of integument
5. Ligament
PART B—DESCRIPTIVE
Marks 35
The figures in the margin indicate full marks for the questions
1. Classify Agnatha with salient features up to orders. 7
OR
Write a note on the post-embryonic development of Amphioxus. 7
2. Give an outline classification of Pisces up to orders. 7
OR
Describe the different types of scales in fishes with diagrams. 7
ZOO/II/02/378 3 Contd.
3. Give an account on migration in birds. 7
OR
Discuss the principles of flight in birds. 7
4. Give a brief account on the respiratory systems in chordates. 7
OR
Write an account on the integumentary system in vertebrates. 7
5. Give a detailed account on the dentition in mammals. Write the dental
formula for deciduous teeth of human.
OR
Describe the structure and composition of bone. 7