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Identify ‘A’ in the given graph of population growth:
Concept: Population
Complete the following chart regarding population interaction and re-write:
| Sr. No. | Name of interaction | Interaction between |
| 1. | ? | Plasmodium and Man |
| 2. | ? | Leopard and Lion |
| 3. | ? | Clownfish and Sea-anemone |
Concept: Population Interactions
Describe mutualism.
Concept: Population Interactions
Identify the appropriate term for the number of births under ideal conditions:
Concept: Population
Explain the term Emigration.
Concept: Population
Explain ‘Carbon cycle’.
Concept: Biogeochemical Cycles (Nutrient Cycles)
Mention any 'two' ecological services forthe benefit of mankind
Concept: Ecological Services
Give diagrammatic representation of pyramid of numbers.
Concept: Ecological Pyramids
What is the role of decomposers in an ecosystem?
Concept: Classification of Animal
Guano deposits are rich in ______.
Concept: Biogeochemical Cycles (Nutrient Cycles)
In a food chain, the herbivores are represented by
(A) producers
(B) primary consumers
(C) secondary consumers
(D) decomposers
Concept: Ecological Pyramids
Explain energy pyramid
Concept: Ecological Pyramids
The abundance of phosphate, causing algal overgrowth resulting in depletion of oxygen and killing other aquatic life is known as --------------------------.
Concept: Biogeochemical Cycles (Nutrient Cycles)
Name any ‘two’ edible varieties of mushrooms. Give nutritional values of these.
Concept: Biogeochemical Cycles (Nutrient Cycles)
Secondary consumers are __________.
Concept: Ecological Pyramids
Growth of new grasses and shrubs on a patch of forest burnt down by forest fire, is a an example of ______.
Concept: Biotic or Ecological Succession
What is ‘Sere’?
Concept: Biotic or Ecological Succession
What is ‘Climax community’?
Concept: Biotic or Ecological Succession
Give reasons – ‘Primary succession is always slower than secondary succession’
Concept: Biotic or Ecological Succession
