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NEET Zoology PYQs
Class XI & Class XII
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🧬 Zoology
📘 Class XI & XII
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407 questions in Zoology
Secondary metabolites such as nicotine, strychnine
and caffeine are produced by plants for their:
A
Nutritive value
B
Growth response
C
Defence action
D
Effect on reproduction
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Match the trophic levels with their correct species examples in grassland ecosystem.
(A)Fourth trophic level
(I)Crow
(B)Second trophic level
(II)Vulture
(C)First trophic level
(III)Rabbit
(D)Third trophic level
(IV)Grass
A
(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
B
(A)-(III), (B)-(II), (C)-(I), (D)-(IV)
C
(A)-(IV), (B)-(III), (C)-(II), (D)-(I)
D
(A)-(I), (B)-(II), (C)-(III), (D)-(IV)
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In relation to Gross primary productivity and Net
primary productivity of an ecosystem, which one
of the following statements is correct?
A
Gross primary productivity is always less than net primary productivity.
B
Gross primary productivity is always more than net primary productivity.
C
Gross primary productivity and Net primary productivity are one and same.
D
There is no relationship between Gross primary productivity and Net primary productivity.
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The rate of decomposition is faster in the ecosystem due to following factors except:
A
Detritus rich in sugars
B
Warm and moist environment
C
Presence of aerobic soil microbes
D
Detritus richer in lignin and chitin
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Which of the following statements is incorrect regarding the phosphorus cycle?
A
Phosphates are the major form of phosphorus
reservoir
B
Phosphorus solubilising bacteria facilitate the release of phosphorus from organic remains
C
There is appreciable respiratory release of
phosphorus into atmosphere
D
It is sedimentary cycle
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In the following in each set a conservation approach and an example of method of conservation are given:
A
(A) and (C)
B
(A) and (D)
C
(B) and (D)
D
(A) and (B)
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Which of the following regions of the globe exhibits highest species diversity?
A
Western Ghats of India
B
Madagascar
C
Himalayas
D
Amazon forests
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Air (Prevention and Control of Pollution) Act was
amended in 1987 to include among pollutants:
A
Vehicular exhaust
B
Allergy causing pollen
C
Noise
D
Particulates of size 2.5 micrometer or below
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Which of the following is put into Anaerobic sludge
digester for further sewage treatment?
A
Primary sludge
B
Floating debris
C
Effluents of primary treatment
D
Activated sludge
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Montreal protocol was signed in 1987 for control
of:
A
Transport of Genetically modified organisms from one country to another
B
Emission of ozone depleting substances
C
Release of Green House gases
D
Disposal of e-wastes
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