An easily disturbed ecosystem which can recover after some time after the stoppage of  damaging factor is of
1. Low stability and high resilience
2. High stability and high resilience
3. Low stability and low resilience
4. High stability and low resilience

Subtopic:  Ecological Succession (OLD NCERT) |
 62%
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Which of the following is not used for construction of ecological pyramids  
1. Fresh weight
2. Dry weight
3. Number of individuals
4. Rate of energy flow

Subtopic:  Ecological Pyramids |
 70%
From NCERT
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Highest annual net primary productivity is of  
1.Tropical deciduous forest
2. Temperate evergreen forest
3. Temperate deciduous forest
4. Tropical rain forest

Subtopic:  Components & Types of Ecosystems |
 78%
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Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem.
1. Frog
2. Phytoplankton
3. Fish
4. Zooplankton

Subtopic:  Energy Flow |
 52%
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The biomass available for consumption by the herbivores and the decomposers is called   
1. Secondary productivity
2. Standing crop
3. Gross primary productivity
4. Net primary productivity

Subtopic:  Ecosystem Productivity |
 62%
From NCERT
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Which one of the following is one of the characteristics of a biological community.  
1. Natality
2. Mortality
3. Sex-ratio
4. Stratification

Subtopic:  Components & Types of Ecosystems |
 71%
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Large Woody Vines are more commonly found in :   
1. Temperate forest
2. Mangroves
3. Tropical rainforests
4. Alpine forests

Subtopic:  Ecological Succession (OLD NCERT) |
 59%
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Which one of the following statements is correct for secondary succession?    
1. It begins on a bare rock
2. It occurs on a deforested site
3. It follows the primary succession
4. It is similar to primary succession except that it has a relatively fast pace

Subtopic:  Ecological Succession (OLD NCERT) |
 67%
From NCERT
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Which one of the following statements for pyramid of energy is incorrect, whereas the remaining three are correct?
1. Its base is broad
2. It shows energy content of different trophic level organisms
3. It is inverted in shape
4.It is upright in shape

Subtopic:  Ecological Pyramids |
 85%
From NCERT
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Both, hydrarch and xerarch successions lead to:  
1. Medium water conditions
2. Xeric conditions
3. Highly dry conditions
4. Excessive wet conditions

Subtopic:  Ecological Succession (OLD NCERT) |
 80%
From NCERT
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