Start learning →

AP Intermediate 2nd Year Ecosystem — practice questions

Explore 20 free Ecosystem questions in AP Intermediate 2nd Year Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Ecosystem with Quill →

Ecosystem questions and exercises with answers

Showing questions 1–20 of 20.

An ecosystem is visualised as a functional unit of:Read the answer and worked solution →How many aspects make the components of an ecosystem function as a unit?Read the answer and worked solution →The raw material for decomposition is known as:Read the answer and worked solution →Vertical distribution of species occupying different levels is called:Read the answer and worked solution →Gross primary productivity minus respiration losses gives which quantity?Read the answer and worked solution →The place an organism occupies in a food chain is known as its:Read the answer and worked solution →Which process begins the detritus food chain?Read the answer and worked solution →In an aquatic ecosystem, which food chain is the major route for energy flow?Read the answer and worked solution →What fraction of energy is transferred to each trophic level from the one below?Read the answer and worked solution →Decomposition is described as a process that largely requires:Read the answer and worked solution →The mass of living material at a trophic level at a particular time is called the:Read the answer and worked solution →What proportion of photosynthetically active radiation do plants capture?Read the answer and worked solution →In most ecosystems the pyramids of number, energy and biomass are:Read the answer and worked solution →Why is the pyramid of biomass in the sea generally inverted?Read the answer and worked solution →How many steps are named in the process of decomposition?Read the answer and worked solution →Which decomposition step releases inorganic nutrients from the humus?Read the answer and worked solution →The annual net primary productivity of the whole biosphere is approximately:Read the answer and worked solution →Although oceans cover about seventy per cent of the surface, their productivity is only:Read the answer and worked solution →Order the decomposition stepsRead the answer and worked solution →Sort by trophic roleRead the answer and worked solution →

Worked practice questions

An ecosystem is visualised as a functional unit of:

  1. Nature
  2. Notice
  3. Nursery
  4. Network
Show answer and solution

Correct answer: A. Nature

1. An ecosystem holds living organisms and their surroundings together. 2. They interact among themselves and with the physical environment. 3. An ecosystem can be visualised as a functional unit of nature. 4. So the answer is nature. _Source: syllabus Biology, Ch 12 'Ecosystem'_

Open this question →

How many aspects make the components of an ecosystem function as a unit?

  1. Ten aspects
  2. Four aspects
  3. Nine aspects
  4. Six aspects
Show answer and solution

Correct answer: B. Four aspects

1. The workings of an ecosystem are grouped under named headings. 2. They are productivity, decomposition, energy flow and nutrient cycling. 3. That makes four aspects in all. 4. So the answer is four. _Source: syllabus Biology, Ch 12 'Ecosystem'_

Open this question →

The raw material for decomposition is known as:

  1. Detritus
  2. Detergent
  3. Deterrent
  4. Detachment
Show answer and solution

Correct answer: A. Detritus

1. Decomposition needs dead material to work on. 2. That material includes dead leaves, bark, flowers and animal remains. 3. Together they constitute detritus, the raw material for decomposition. 4. So the answer is detritus. _Source: syllabus Biology, Ch 12 'Ecosystem'_

Open this question →

How to practise

  1. Choose a Ecosystem question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Ecosystem practice for AP Intermediate 2nd Year. Read explanations as you go. No signup form needed to start.

Practise Ecosystem →

More Biology topics

Genetics and EvolutionReproduction in Organisms & PlantsBiotechnology and ApplicationsBiology in Human Welfare & HealthEcology and EnvironmentReproductive HealthOrganisms and PopulationsBiodiversity and Conservation