ECONOMIC
BIOLOGY
1. Choose the correct answer :
1.
The production and management of fish is called
(a)
Pisciculture
(b)
Sericulture
(c)
Aquaculture
(d)
Monoculture
[Answer: (a) Pisciculture]
2.
Which one of the following is not an exotic breed of cow?
(a)
Jersey
(b)
Holstein-Friesan
(c)
Sahiwal
(d)
Brown Swiss
[Answer: (c) Sahiwal]
3.
Which one of the following is an Italian species of honey bee?
(a)
Apis mellifera
(b)
Apis dorsata
(c)
Apis florae
(d)
Apis cerana
[Answer: (a) Apis mellifera]
4.
Which one of the following is not an Indian major carp?
(a)
Rohu
(b)
Catla
(c)
Mrigal
(d)
Singhara
[Answer: (d) Singhara]
5.
Drones in the honey bee colony are formed from
(a)
unfertilized egg
(b)
fertilized egg
(c)
parthenogenesis
(d)
both b and c
[Answer: (a) unfertilized egg]
6.
Which of the following is an high milk yielding variety of cow?
(a)
Holstein-Friesan
(b)
Dorset
(c)
Sahiwal
(d)
Red Sindhi
[Answer: (a) Holstein-Friesan]
7.
Which Indian variety of honey bee is commonly used for apiculture?
(a)
Apis dorsata
(b)
Apis florea
(c)
Apis mellifera
(d)
Apis indica
[Answer: (d) Apis indica]
8.
――― is the method of growing plants without soil.
(a)
Horticulture
(b)
Hydroponics
(c)
Pomology
(d)
None of these
[Answer: (b) Hydroponics]
9.
The symbiotic association of fungi and vascular plants is
(a)
Lichen
(b)
Rhizobium
(c)
Mycorrhizae
(d)
Azotobacter
[Answer: (c) Mycorrhizae]
10.
The plant body of mushroom is
(a)
Spawn
(b)
Mycelium
(c)
Leaf
(d)
All of these
[Answer: (b) Mycelium]
II. Fill in the blanks :
1. Quinine
drug is obtained from Cinchona (cinjona
maram).
2. Carica
papaya leaf can cure Dengue
disease.
3. Vermicompost
is a type of soil made by Earthworm
and microorganisms.
4. Aquaculture refers to the culture of
prawns, pearl and edible oysters.
5.
The
largest member in a honey bee hive is the Queen
Bee.
6. Formic acid is a preservative in honey.
7. Polyculture is the method of culturing
different variety of fish in a water body.
III. Say true or false. If false, correct the statement :
1. Mycorrhiza
is an algae.
Answer: False.
Correct statement: Mycorrhiza is a fungi.
2.
Milch
animals are used in agriculture and transport.
Answer: False.
Correct statement: Milch animals are used in milk production.
3. Apis
florea is a rock bee.
Answer: False.
Correct statement: Apis
dorsata is a rock bee.
4. Ongole
is an exotic breed of cattle.
Answer: False.
Correct statement: Ongole is an Indian breed of cattle.
5. Sheep
manure contains high nutrients than farm yard manure.
Answer: True.
V. Match the following :
Column
A - Column B
Lobsters
- Marine fish
Catla
- Pearl
Sea
bass - Shell fish
Oysters
- Paddy
Pokkali
- Fin fish
Pleurotus
sps
- Psoriosis
Sarpagandha
- Oyster mushroom
Olericulture
- Reserpine
Wrighta
tinctoria - Vegetable farming
Answer:
Lobsters - Shell fish
Catla - Fin fish
Sea bass - Marine fish
Oysters - Pearl
Pokkali - Paddy
Pleurotus sps - Oyster
mushroom
Sarpagandha - Reserpine
Olericulture - Vegetable farming
Wrighta tinctoria - Psoriosis
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