ZOO/II/EC/03 Student's Copy
2 0 1 8
CBCS
2nd Semester
ZOOLOGY
SECOND PAPER
Chordate Biology and Anatomy
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. Notochord is confined to proboscis region in
Urochordata
Hemichordata
Cephalochordata
Chordata
2. Body of Herdmania is divided into
head, body proper and foot
head, abdomen and foot
body proper and foot
body, tail and foot
/314 1 Contd.
3. Scoliodon is
marine and herbivorous
freshwater and carnivorous
marine, carnivorous and predator
freshwater and omnivorous
4. Salivary glands in frog are
absent
one pair
two pairs
three pairs
5. Snakes are sensitive to
noises made by birds
earth-borne vibrations
thunder
air-borne vibrations
6. The burrow of rabbit is called
warren
form
barren
barrel
7. Dermis of vertebrate integument is derived from
ectoderm
mesoderm
endoderm
ecto-mesoderm
8. Pigeon's milk is manufactured in
crop
oesophagus
buccal cavity
stomach
ZOO/II/EC/03/314 2 Contd.
9. Milk dentition in mammals lacks
molars
premolars
canines
incisors
10. The opening of coronary sinus is guarded by
besian valve
mitral valve
semilunar valve
tricuspid valve
SECTION—B
Marks 15
Write notes on the following 3×5=15
1. Basic character of chordates
OR
Character of protochordata
2. Different types of fish scale
OR
Migration of fishes
3. Modes of flight
OR
Poison apparatus
4. Structure of integument
OR
Derivatives of integument
5. Dentition in mammals
OR
Types of gill
ZOO/II/EC/03/314 3 Contd.
PART B—DESCRIPTIVE
Marks 50
The figures in the margin indicate full marks for the questions
1. Write an account on the post-embryonic development in Branchiostoma.
OR
Write an account on the affinities and salient features of Urochordata and
Cephalochordata.
2. Write an account on the locomotion in Pisces.
OR
Discuss the general characters of Amphibia. Differentiate between neoteny
and paedogenesis.
3. Give an account on the development of feathers in Columba livia.
OR
Give an account on snake venoms and biting mechanism of snake.
4. Write a note on the receptor organs in mammals.
OR
Give a detailed structure and the functions of eye of rabbit with labelled
diagram.
5. Discuss the structure and composition of cartilage in vertebrates.
OR
Give an account of the modification of heart in vertebrates.