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B.Sc Forestry Ecosystems — practice questions

Explore 30 free Ecosystems questions in B.Sc Forestry Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Ecosystems questions and exercises with answers

Showing questions 1–30 of 30.

A community of living organisms together with their nonliving surroundings forms an:Read the answer and worked solution →Ecosystems are grouped into how many broad categories by general environment?Read the answer and worked solution →The steady state in which organisms are in balance with their environment is:Read the answer and worked solution →The ability of an ecosystem to stay at equilibrium despite disturbance is called:Read the answer and worked solution →The speed at which an ecosystem recovers equilibrium after disturbance is called:Read the answer and worked solution →A field study ranks each species by what it eats. That feeding rank is called its:Read the answer and worked solution →Herbivores that eat primary producers are called:Read the answer and worked solution →Carnivores that eat other carnivores are classed as:Read the answer and worked solution →The organism at the very top of a food chain, eaten by no one, is the:Read the answer and worked solution →The major factor that limits how long a food chain can be is:Read the answer and worked solution →Earthworms and fungi feeding on fallen leaves form the base of a detrital web. They are called:Read the answer and worked solution →The total mass of living or once living organisms in a trophic level is its:Read the answer and worked solution →The rate at which producers capture energy from the sun is called:Read the answer and worked solution →Energy left in producers after their own respiration and heat loss is:Read the answer and worked solution →Diagrams showing amounts of energy, biomass or numbers across trophic levels are:Read the answer and worked solution →Pyramids of numbers in an ecosystem can be upright or:Read the answer and worked solution →Pyramids of energy, unlike the other kinds, are always:Read the answer and worked solution →Energy pyramids must be upright because of the laws of:Read the answer and worked solution →The build up of a pollutant to higher levels up a food chain is called:Read the answer and worked solution →The classic biomagnification case involved a pesticide that thinned bird eggshells, called:Read the answer and worked solution →The book that alerted the public to pesticide dangers in the 1960s was:Read the answer and worked solution →Photosynthesis converts carbon dioxide into organic carbon and respiration returns it as:Read the answer and worked solution →Catch the trophic levelsRead the answer and worked solution →Pop the pyramid kindsRead the answer and worked solution →Run the ecosystem gatesRead the answer and worked solution →Slice the ecology termsRead the answer and worked solution →Living or nonlivingRead the answer and worked solution →Sort the ecosystem ideasRead the answer and worked solution →Type the numberRead the answer and worked solution →Ecosystems bingoRead the answer and worked solution →

Worked practice questions

A community of living organisms together with their nonliving surroundings forms an:

  1. Ecosystem
  2. Ecotourism
  3. Economising
  4. Echo system
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Correct answer: A. Ecosystem

1. Living and nonliving parts interact constantly. 2. Together they form one working unit. 3. That unit is an ecosystem. _Source: OpenStax Biology 2e, Chapter 46, Ecosystems._

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Ecosystems are grouped into how many broad categories by general environment?

  1. 5
  2. 3
  3. 2
  4. 4
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Correct answer: B. 3

1. Freshwater and ocean water are two of them. 2. Terrestrial completes the list. 3. So there are 3 categories. _Source: OpenStax Biology 2e, Chapter 46, Ecosystems._

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The steady state in which organisms are in balance with their environment is:

  1. Equilibrium
  2. Equivalence
  3. Equidistance
  4. Equipartition
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Correct answer: A. Equilibrium

1. Nothing is growing or shrinking out of control. 2. The ecosystem holds a stable state. 3. That state is equilibrium. _Source: OpenStax Biology 2e, Chapter 46, Ecosystems._

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