Ecology and Environment AFCAT Questions

AFCAT Environmental Geography

Ecology and Environment MCQ Questions


7.
Producers in an ecosystem are also called:
A.
Saprotrophs
B.
Heterotrophs
C.
Detritivores
D.
Autotrophs
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ANSWER :
D. Autotrophs
8.
The 10% law of energy flow in an ecosystem was given by:
A.
Odum
B.
Haeckel
C.
Tansley
D.
Lindeman
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ANSWER :
D. Lindeman
9.
In a food chain, the energy transfer between successive trophic levels is approximately:
A.
50%
B.
1%
C.
10%
D.
90%
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ANSWER :
C. 10%
10.
The flow of energy in an ecosystem is:
A.
Multidirectional
B.
Bidirectional
C.
Unidirectional
D.
Cyclic
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ANSWER :
C. Unidirectional
11.
Which type of pyramid is always upright in a terrestrial ecosystem?
A.
Pyramid of biomass
B.
Pyramid of biomass in oceans
C.
Pyramid of energy
D.
Pyramid of numbers
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ANSWER :
C. Pyramid of energy
12.
An inverted pyramid of biomass is typically found in:
A.
Grassland ecosystems
B.
Forest ecosystems
C.
Desert ecosystems
D.
Ocean ecosystems
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ANSWER :
D. Ocean ecosystems