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BECE (Ghana) Ecosystems — practice questions

Explore 3 free Ecosystems questions in BECE (Ghana) Science. 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 1–3 of 3.

A bee feeds on nectar and carries pollen between flowers. Both species gain. What is this called?Read the answer and worked solution →Which group of living things makes its own food?Read the answer and worked solution →Where does all the energy in a food chain come from at the start?Read the answer and worked solution →

Worked practice questions

A bee feeds on nectar and carries pollen between flowers. Both species gain. What is this called?

  1. Parasitism
  2. Mutualism
  3. Competition
  4. Commensalism
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Correct answer: B. Mutualism

1. The bee gains food in the form of nectar from the flower. 2. The flower gains because its pollen is carried to another flower. 3. When both species gain from living together the relationship is mutualism. 4. In parasitism one species is harmed, which is not what happens here. _Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Types of interactions_

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Which group of living things makes its own food?

  1. The consumers
  2. The predators
  3. The producers
  4. The scavengers
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Correct answer: C. The producers

1. Plants build their own food from carbon dioxide, water and sunlight. 2. Organisms that make their own food are called producers. 3. Consumers cannot do this, so they have to eat other organisms. _Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Producers_

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Where does all the energy in a food chain come from at the start?

  1. From the soil
  2. From the air
  3. From the rain
  4. From the Sun
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Correct answer: D. From the Sun

1. Plants trap sunlight and store it as chemical energy in food. 2. Animals that eat plants take in some of that stored energy. 3. Animals that eat other animals take in energy that came the same way. 4. So every food chain traces its energy back to the Sun. _Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Energy transfer_

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