CSS :: Ecology and General Silviculture
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61. |
The bacteria which attack the dead animals are: |
A. |
First link of the food chain and are known as primary producers |
B. |
Second link of the food chain and are herbivouous |
C. |
Third link of the food chain and are tertiary consumers |
D. |
The end of the food chain and are decomposers |
Answer: Option D
Explanation:
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62. |
A plant, being eaten by a herbivore which in turn is eaten by a carnivore, makes a: |
A. |
Food chain |
B. |
Web of food |
C. |
Biomass |
D. |
Interdependence |
Answer: Option A
Explanation:
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63. |
A crocodile had just eaten a lamb when a hawk saw the crocodile attacked it, and consumed it. The hawk is in ecological terms: |
A. |
A producer |
B. |
A primary consumer |
C. |
A secondary consumer |
D. |
A tertiary consumer |
Answer: Option D
Explanation:
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64. |
If organisms are arranged according to predator-prey relationship one always finds more of prey species then of predator. This is called a: |
A. |
Food web |
B. |
Pyramid of numbers |
C. |
Succession |
D. |
Predator-prey relationship |
Answer: Option B
Explanation:
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65. |
If all the green plants were to disappear from the earth: |
A. |
Only the herbivores will die |
B. |
All the animal will die |
C. |
Only the carnivores will die |
D. |
It will not matter to anyone because chemosynthetic bacteria will produce food for all |
Answer: Option B
Explanation:
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66. |
Which group of three living organisms, given below is a link in food chain: Green plants .... Hawk: |
A. |
Grasshopper, frog, snake |
B. |
Grasshopper, rat, snake |
C. |
Millipedes, centipedes, sparrow |
D. |
Earthworm, hen, rat |
Answer: Option A
Explanation:
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67. |
Deers are: |
A. |
Autptrophic |
B. |
Heterotrophic |
C. |
Herbivores |
D. |
Atrophic |
Answer: Option C
Explanation:
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68. |
Energy flow and energy transformations in living systems strictly conform to the: |
A. |
Law of limiting factors |
B. |
Liebig's law of minimum |
C. |
Laws of thermody namics |
D. |
Shelford's law of tolerance |
E. |
Biogenetic law |
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Answer: Option C
Explanation:
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69. |
The living steady state has a self-regulatory mechanism which is: |
A. |
Feedback mecanism |
B. |
Homeotherms |
C. |
Homozygous |
D. |
Homeostasis |
E. |
Heterozygous |
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Answer: Option D
Explanation:
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70. |
In a food chain the largest population is that of: |
A. |
Producers |
B. |
Decomposers |
C. |
Tertiary consumers |
D. |
Primary consumers |
Answer: Option A
Explanation:
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