Identify the biome that is not correctly matched with the physical parameters given in corresponding Column II and Column III:

   Biome  Mean annual temperature °C 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

 

Subtopic:  Introduction to Ecology |
 58%
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The most ecologically relevant environmental factor is:

1. Temperature

2. Water

3. Light

4. Soil

Subtopic:  Abiotic Factors: Temperature (OLD NCERT) |
 86%
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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 expected for any species

4. Shift to marine water from land

Subtopic:  Abiotic Factors: Temperature (OLD NCERT) |
 52%
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Many freshwater animals cannot live for long in sea water and vice versa because of:

1. Buoyancy related problems

2. Lack of impermeable skins

3. Thermolabile enzymes

4. Osmotic considerations

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 90%
From NCERT
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Under unfavorable conditions, many zooplankton species in lakes and ponds are known to enter a stage of suspended development called as:

1. Dormancy

2. Hibernation

3. Aestivation

4. Diapause

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 84%
From NCERT
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The given age pyramid represents a:

1. Fast expanding population

2. Slowly expanding population

3. Stable population

4. Declining population

Subtopic:  Population Characters: Age Structure & Migration |
 76%
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Darwinian fitness is represented by:

1. Low r value

2. High r value

3. High K value

4. Low K value

Subtopic:  Life History Variations |
 75%
From NCERT
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Under a particular set of selection pressures, organisms evolve towards the most efficient:

1. Thermoregulation

2. Water conservation

3. Respiration

4. Reproduction strategy

Subtopic:  Life History Variations |
 61%
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A population interaction where one species is harmed whereas the other is unaffected is called as:

(1) Mutualism

(2) Competition

(3) Predation

(4) Amensalism

Subtopic:  Population Interactions: Amensalism |
 86%
From NCERT
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When certain exotic species are introduced into a geographical area, they become invasive mainly because:

1. The invaded land has unlimited resources for the introduced species

2. The invaded land does not have its natural predator

3. The population of the introduced species in the invaded land is very low

4. Introduced species do not face any competition in the introduced land

Subtopic:  Population Interactions: Predation |
 73%
From NCERT
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