Ecology and Environment AFCAT Questions

AFCAT Biology

Ecology and Environment MCQ Questions


13.
Robert May's scientifically sound estimate of total global species diversity is about:
A.
50 million
B.
1.5 million
C.
7 million
D.
20 million
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ANSWER :
C. 7 million
14.
Producers in an ecosystem are also called:
A.
Saprotrophs
B.
Heterotrophs
C.
Detritivores
D.
Autotrophs
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ANSWER :
D. Autotrophs
15.
IUCN stands for:
A.
International Council for Universal Nature Conservation
B.
International Union for Conservation of Nature and Natural Resources
C.
Indian Union for Conservation of Nature
D.
International Union for Climate and Nature
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ANSWER :
B. International Union for Conservation of Nature and Natural Resources
16.
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
17.
More than what percentage of all the species recorded on Earth are animals?
A.
70%
B.
90%
C.
22%
D.
50%
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ANSWER :
A. 70%
18.
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%