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Biology · Textbook solutions

Ecosystems and Energy Flow

Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. Plus every board question asked from this chapter. · 17 questions

Exercise

17 q

Q1. Multiple choice questions

Practice · 6
  1. Multiple choice questions
    Ex Q1(1)
    Which one of the following has the largest population in a food chain?

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  2. Ex Q1(2)
    The second trophic level in a lake is ________________

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  3. Ex Q1(3)
    Secondary consumers are __________

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  4. Ex Q1(4)
    What is the % of photosynthetically active radiation in the incident solar radiation?

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  5. Ex Q1(6)
    Give the term used to express a community in its final stage of succession?

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  6. Ex Q1(8)
    Which of the following is most often a limiting factor of the primary productivity in any ecosystem.

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Q2. Very short answer question

Practice · 4
  1. Very short answer question.
    Ex Q2(1)
    Give an example of ecosystem which shows inverted pyramid of numbers.
  2. Ex Q2(2)
    Give an example of ecosystem which shows inverted pyramid of biomass.
  3. Ex Q2(3)
    Which mineral acts as limiting factor for productivity in an aquatic ecosystem.
  4. Ex Q2(4)
    Name the reservoir and sink of carbon in carbon cycle.

Q3. Short answer questions

Practice · 2
  1. Short answer questions.
    Ex Q3(1)
    Distinguish between upright and inverted pyramid of biomass
  2. Ex Q3(2)
    Distinguish between Food chain and Food web.

Q4. Long answer questions

Practice · 5
  1. Long answer questions.
    Ex Q4(1)
    Define ecological pyramids and describe with examples, pyramids of number and biomass.
  2. Ex Q4(2)
    What is primary productivity? Give brief description of factors that affect primary productivity.
  3. Ex Q4(3)
    Define decomposition and describe the processes and products of decomposition.
  4. Ex Q4(4)
    Write important features of a sedimentary cycle in an ecosystem.
  5. Ex Q4(5)
    Discribe carbon cycle and add a note on the impact of human activities on carbon cycle.