Physiological ecology

  1. works at organismic level
  2. Tries to understand the adaptation with respect to survival only
  3. Tries to understand the adaptation with respect to reproduction only
  4. None of these

Subtopic:  Introduction to Ecology |
 68%
From NCERT
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Life exist in compost pits, permafrost polar regions. Our intestine host only 3-10 microbes. Major biomes of India include desert rainforest and tundra. The important physicochemical components alone chracterise different habitats.

How many of the above statements is/are wrong?

  1. Three
  2. Two
  3. Only one
  4. All four
Subtopic:  Introduction to Ecology |
From NCERT
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The most ecologically relevant abiotic factor is

  1. Water
  2. Light
  3. Temperature
  4. Soil
Subtopic:  Abiotic Factors: Temperature (OLD NCERT) |
 95%
From NCERT
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Which of the following is best suited with the abiotic factor temperature, playing role in changes in physico-chemical environment of different habitats?

  1. Average temperature of land is approximately 50 throughout year
  2. The temperature of temperate countries is very much favourable for mango trees
  3. Temperature affects kinetics of enzyme and hence basal metabolic activity of the body
  4. Both A and B
Subtopic:  Abiotic Factors: Temperature (OLD NCERT) |
 79%
From NCERT
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Aquatic organisms face problems when water quality gets disturbed. Here water quality includes

  1. Chemical composition, temperature, pH
  2. Chemical composition and pH
  3. Only pH
  4. pH and temperature
Subtopic:  Abiotic Factors: Light & Water (OLD NCERT) |
 60%
From NCERT
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The salt concentration of water bodies is measured in

  1. Parts Per Thousands
  2. Parts Per Million
  3. Parts Per Billion
  4. Parts per Hundreds
Subtopic:  Abiotic Factors: Light & Water (OLD NCERT) |
 65%
From NCERT
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Light as an abiotic factor is important

  1. For photosynthesis and flowering only
  2. Foraging, reproductive and migratory activities of animals
  3. A and B both
  4. Only for autotrophs
Subtopic:  Abiotic Factors: Light & Water (OLD NCERT) |
 92%
From NCERT
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Which statement among the following is wrong?

  1. More than 500 m depth of ocean doesn't get sunlight
  2. The spectral quality of solar light is important.
  3. All the color components of visible spectrum are not available for marine plants.
  4. The UV component of light is harmful to all the organisms
Subtopic:  Abiotic Factors: Light & Water (OLD NCERT) |
 67%
From NCERT
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The percolation property of soil is controlled by which of the following parameters?

  1. Composition and Aggregation
  2. Composition and pH
  3. Composition, Aggregation and grain size
  4. Grain size, topography and pH
Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 81%
From NCERT
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