Presence of plants arranged into well-defined vertical layers depending on their height can be seen best in

1. Tropical Savannah
2. Tropical Rain Forest
3. Grassland
4. Temperate Forest

Subtopic:  Introduction |
 85%

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Niche is
1. all the biological factors in the organism's environment
2. the functional role played by the organism where it lives
3. the range of temperature that the organism needs to live
4. the physical space where an organism lives

Subtopic:  Introduction |
 76%

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What type of ecological pyramid would be obtained with the following data?
Secondary consumer : 120 g
Primary consumer : 60 g
Primary producer : 10 g
1. Inverted pyramid of biomass
2. Upright pyramid of biomass
3. Upright pyramid of numbers
4. Pyramid of energy

Subtopic:  Ecological Pyramids |
 81%
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Pneumatophores occur in
1. Halophytes
2. Submerged hydrophytes
3. Carnivorous plants
4. Free-floating hydrophytes

Subtopic:  Components & Types of Ecosystems |
 71%

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Great Barrier Reef along east coast of Australia is a
1. Population
2. Community
3. Biome
4. Ecosystem

Subtopic:  Components & Types of Ecosystems |

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The accompanying figure represents an ecological pyramid. It is

 

1.  Pyramid of numbers in a grassland
2.  Pyramid of biomass in a fallow land
3.  Pyramid of biomass in a lake
4.  Energy pyramid in a spring

Subtopic:  Ecological Pyramids |
 58%

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A physical structure that is characteristic of each type of ecosystem is due to:

1.  Interaction between various biotic components of the ecosystem
2.  Interaction between various abiotic components of the ecosystem
3.  Interaction between various biotic and abiotic components of the ecosystem
4.   Interaction of producers with abiotic components of the ecosystem

Subtopic:  Introduction |
 87%
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Stratification of an ecosystem means:

1.  Vertical distribution of different species occupying different levels
2.  Vertical distribution of different species occupying the same levels
3.  Horizontal distribution of different species occupying different levels
4.  Horizontal distribution of different species occupying the same levels
Subtopic:  Introduction |
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In an ecosystem, the rate of production of organic matter during photosynthesis is called as its:

1. Gross Primary productivity
2. Net Primary productivity
3. Secondary productivity
4. Non productivity
Subtopic:  Ecosystem Productivity |
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The rate of formation of new organic matter by consumers in an ecosystem is known as:

1. Gross Primary productivity
2. Net Primary productivity
3. Secondary productivity
4. Non-productivity
Subtopic:  Ecosystem Productivity |
 81%
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