Q. No.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
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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If global warming continues, how would the distributional range of some species be affected?
1. There will be a poleward shift
2. There will be an equatorial shift
3. No change is expected for any species
4. There will be shift from land to marine water
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The salt concentration [measured as salinity in parts per thousand] for inland waters is:
1. Less than 5
2. Between 5 and 15
3. 30 – 35
4. More than 100
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Organisms that are tolerant for a wide range of salinity are called:
| 1. | Stenohalines | 2. | Euryhalines |
| 3. | Halophytes | 4. | Stenothermals |
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Small plants [herbs and shrubs], growing in forests, are usually adapted to photosynthesize optimally under:
1.Very high light conditions
2.Very low water conditions
3.Very high water conditions
4.Very low light conditions
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Photoperiod affects:
1. Plants only
2. Animals only
3. Both plants and animals
4. Neither plants nor animals
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Which of the following algae is likely to be found in the deepest waters?
1.Green
2.Brown
3.Red
4.All are found at equal depths
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Thermoregulation and osmoregulation can be achieved by all:
1. Amniotes
2. Birds and mammals
3. Vertebrates
4. Chordates and insects
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