Physiological ecology

1. works at the 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 |
 66%
From NCERT
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A wide variety of habitats within a biome can be a result of

1. Regional variation of temperature and precipitation.

2. Local variation of temperature and precipitation

3. Both 1 and 2

4. Natural selection

Subtopic:  Introduction to Ecology |
 79%
From NCERT
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A. Life exists in compost pits, permafrost polar regions.
B. Our intestine host only 3-10 microbes.
C. Major biomes of India include desert rainforest and tundra.
D. The important physicochemical components alone characterise 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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Which of the following is best suited with the abiotic factor temperature, playing role in changes in the physicochemical environment of different habitats?

1. The average temperature of land is approximately 50 throughout the year

2. The temperature of temperate countries is very much favorable for mango trees

3. Temperature affects the kinetics of enzyme and hence the basal metabolic activity of the body

4. Both 1 and 2

Subtopic:  Abiotic Factors: Temperature (OLD NCERT) |
 75%
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) |
 52%
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) |
 91%
From NCERT
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Which statement among the following is wrong?

1. More than 500 m depth of the ocean doesn't get sunlight

2. The spectral quality of solar light is important.

3. All the color components of the 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) |
 58%
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) |
 77%
From NCERT
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In aquatic habitats, the type of benthic animals is determined by

1. The grain size of soil at the bottom

2. Sediment characteristics

3. Percolating property of soil

4. topography of soil

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 68%
From NCERT
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