CSS :: Ecology and General Silviculture
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151. |
Which one of the following pairs is a sedimentary type of biogeochemical cycle? |
A. |
Oxygen and nitrogen |
B. |
Phosphorus and sulphur |
C. |
Phosphorus and CO2 |
D. |
Phosphours and nitrogen |
Answer: Option B
Explanation:
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152. |
Which one of the following elements is the critical limiting factors in the function of ecosphere because of its irretrievable loss in the ocear: |
Answer: Option B
Explanation:
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153. |
In desert grasslands, which type of animals are relatively more abundant? |
A. |
Diurnal |
B. |
Arboreal |
C. |
Aquatic |
D. |
Fossorial |
Answer: Option D
Explanation:
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154. |
In which of the following there is no difference? |
A. |
Primary carnivore and trophic level II |
B. |
Secondary consumers and herbivores |
C. |
Primary consumers and herbivores |
D. |
Trophic level I and herbivores |
Answer: Option C
Explanation:
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155. |
In an ecosystem, bacteria are considered as: |
A. |
Microconsumers |
B. |
Secondary consumers |
C. |
Primary consumers |
D. |
None of these |
Answer: Option A
Explanation:
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156. |
In a biotic community, primary consumers are: |
A. |
Herbivores |
B. |
Detrivores |
C. |
Carnivores |
D. |
Omnivores |
Answer: Option A
Explanation:
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157. |
The rate at which light energy is converted into chemical energy of organic molecules is the ecosystem's: |
A. |
Net primary productivity |
B. |
Gross secondary productivity |
C. |
Net secondary productivity |
D. |
Gross primary productivity |
Answer: Option D
Explanation:
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158. |
Biological equilibrium is found among the: |
A. |
Producers and consumers |
B. |
Producers and decomposers |
C. |
Producers, consumers and decomposers |
D. |
Producers and light |
Answer: Option C
Explanation:
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159. |
The number of individuals of a species in a particular ecosystem at a given constant due to: |
A. |
Man |
B. |
Parasites |
C. |
Predators |
D. |
Available food |
Answer: Option D
Explanation:
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160. |
The pyramid of number around a tree would be: |
A. |
Straight |
B. |
Horizontal |
C. |
Inverted |
D. |
Indefinite |
Answer: Option C
Explanation:
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