Q. No.A system of rotating crops with legume or grass pastures to improve soil structure and fertility is called:
1. Shifting agriculture
2. Ley farming
3. Contour farming
4. Strip farming
2. Ley farming
3. Contour farming
4. Strip farming
It is much easier for a small animal to run uphill than for a large animal, because:
1. The efficiency of muscles in large animals is less than in the small animals.
2. It is easier to carry a small body weight.
3. Smaller animals have a higher metabolic rate.
4. Small animals have a lower requirement.
Which one of the following characteristics is not shared by birds and mammals?
1. Warm blooded nature
2. Ossified endoskeleton
3. Breathing using lungs
4. Viviparity
Plants which produce characteristic Pneumatophores and show vivipary belong to
1. Mesophytes
2. halophytes
3. Psammophytes
4. Hydrophytes
Who is revered as the father of ecology in India?
1. Gurdev Singh Khush
2. Ramdeo Mishra
3. Panchanan Maheshwari
4. Jawahar Sharma
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Ecology at the organismic level is essentially:
1. Physiological ecology
2. Biochemical ecology
3. Anatomical ecology
4. Pathological ecology
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The biome characterized by a mean annual temperature between 0C and 25C and mean annual precipitation between 25 cm and 100 cm is:
1. Desert
2. Arctic and alpine tundra
3. Temperate forest
4. Grassland
Identify the biome that is not correctly matched with the physical parameters given in corresponding Column II and Column III:
|
Biome |
Mean annual temperature [OC] |
Mean annual precipitation [cm] |
|
|
1. |
Tropical forest |
20 – 25 |
130 – 430 |
|
2. |
Arctic and alpine tundra |
-12 – 2 |
10 – 125 |
|
3. |
Coniferous forest |
-5 –5 |
100 – 200 |
|
4. |
Temperate forest |
8 – 22 |
50 – 225 |
The most ecologically relevant environmental factor is:
| 1. | Temperature | 2. | Water |
| 3. | Light | 4. | Soil |
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The extent of geographical distribution for eurythermals and stenothermals is expected to be:
1. Equal for both
2. Larger for the former
3. Smaller for the former
4. Cannot be predicted
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