MQC Ecological Succession

Prelims level : Mains level :
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1. Which of the following statements is/are true about secondary succession?

  1. 1. It gets developed after an existing community gets destroyed completely.
  2. 2. Pace of secondary succession is much faster than that of primary succession.
  3. Codes:


2. Which of the following statements is/are true about Ecological Succession?

  1. 1. It is the process of change in the species structure of an ecological community over time.
  2. 2. In this climax community is succeeded by the pioneer community.
  3. 3. It is characterized by increased niche development and complexity of food webs.
  4. Codes:


3. In Grasslands there is combination of drought and fires that prevents biome from becoming more forest like. Why the grasses are able to withstand the fire?


4. Which of the following terms associated with the Ecosystem is/are correctly matched?

  1. 1. Net primary productivity of an ecosystem is the rate of production of organic matter during photosynthesis.
  2. 2. Catabolism is when Bacterial and fungal enzymes degrade detritus into simpler inorganic substances.
  3. 3. Secondary productivity is defined as the rate of formation of new organic matter by consumers.
  4. Select the correct answer using the codes given below:


5. Which of the following terminologies associated with ecosystem is/are incorrectly matched?

  1. 1. Population is defined as the group of organisms consisting of a number of different species that live in an area and interact with each other.
  2. 2. Ecological succession is the process by which communities of plant and animal species in an area are replaced or changed into another over a period of time.
  3. 3. Commensalism is the relationship in which one of the species benefits while the other is neither harmed nor benefited.
  4. Codes:


6. Which of the following describes the relationship of Mutualism?

  1. 1. Pollination
  2. 2. Rhizobium bacteria and plants
  3. 3. Human and Bacteria
  4. 4. Zoochory
  5. Codes:


7. Which of the following pairs is/are correctly matched?

  1. 1. Foundation species are which play an important role in supporting network species by functioning as nutrient circulators.
  2. 2. Edge species are found most abundantly in ecotone boundary.
  3. 3. Indicator species are sensitive to environmental changes in its ecosystem thus act as measures of pollution.
  4. Codes:


8. Which of following is correct explanation of ‘Sere’?


9. Which of the following statement with respect to Ecological Succession is incorrect?


10. Consider the following statements with respect to the ‘Ecological Footprint’:

  1. 1. The Ecological Footprint measures the capability of a country to meet its emission targets based on the available forest cover and environmental related policy framework.
  2. 2. The Ecological Footprint represents the productive area required to provide the renewable resources humanity is using and to absorb its waste.
  3. 3. The productive area occupied by human infrastructure is not included in calculation as it does not depict energy resources.
  4. 4. India has the largest ecological footprint in the world followed by US and China.
  5. Which of the above given statements are incorrect?


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