ZOO/V/CC/15 Student's Copy
2 0 1 8
CBCS
5th Semester
ZOOLOGY
EIGHTH PAPER
Applied Zoology
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
Put a Tick mark against the correct answer in the corresponding brackets
1×10=10
1. In a bee colony, the royal jelly is secreted by
the queen
worker bees
drones
soldiers
/140A 1 Contd.
2. Chemically, silk is basically composed of
fibroin and secretin
fimbrin and sericin
secretin and sericin
fibroin and sericin
3. The part of the soil that has passed through the digestive tract of
earthworms is called
aerobe faecal matter
drilosphere cast
4. Pyrethroids are
insecticides fungicides
herbicides rodenticides
5. w-3 fatty acids in fish oil are derived from
bacteria animal fats
algae molluscs
6. The most ideal alkalinity of pond water would be a pH of around
9·6 7·4
6·1 5·8
7. A critically endangered fish in India is
Squalus acanthias
Pristis pristis
Mustelus fasciatus
Glyphis gangeticus
8. To detect water current and vibrations, fish have
lateral lines
ampullae of Lorenzini
olfactory lobes
claspers
ZOO/V/CC/15 2 Contd.
9. Cryopreservation involves
high temperature high pressure
low temperature low pressure
10. The process of adjustment/adaptation to an environment is called
hypophysation acclimatization
spawning osmoregulation
SECTION—B
Marks 15
Write short notes on the following 3×5=15
1. Nutritional components of honey
OR
Physical properties of silk
2. Bacillus thuringiensis as insecticide
OR
Herbicides
3. Algal bloom
OR
Composite fish culture
4. Threatened fishes
OR
Culturable fishes
5. Ornamental fishes
OR
Broadcast spawners
ZOO/V/CC/15 3 Contd.
PART B—DESCRIPTIVE
Marks 50
The questions are of equal value
1. Describe the various methods in beekeeping.
OR
What are the most important culturable silkworms? Describe the various
methods of rearing of silkworms.
2. Discuss the principle and process of integrated pest management.
OR
What are the types of composting worms? Explain the process and applications
of vermicomposting.
3. Give an account on the structure and maintenance of fish pond.
OR
Describe the principle and practice of integrated fish farming.
4. Explain the types of aquatic adaptation in fishes.
OR
Write an essay on predatory and weed fishes and their control.
5. Explain the process of fish seed production.
OR
Discuss the technique of induced breeding.