Q. Which of the following is an example of a decomposer? (2023)
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A.
Fungi
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B.
Grass
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C.
Lion
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D.
Insect
Solution
Fungi are decomposers that break down dead organic matter, returning nutrients to the soil.
Correct Answer: A — Fungi
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Q. Which of the following is an example of a primary consumer? (2021)
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A.
Grass
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B.
Rabbit
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C.
Fox
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D.
Mushroom
Solution
A rabbit is an example of a primary consumer as it feeds on plants (producers).
Correct Answer: B — Rabbit
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Q. Which of the following is an example of a tertiary consumer? (2023)
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A.
Grass
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B.
Rabbit
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C.
Fox
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D.
Eagle
Solution
An eagle is an example of a tertiary consumer as it feeds on secondary consumers like foxes.
Correct Answer: D — Eagle
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Q. Which of the following is NOT a characteristic of an ecosystem? (2021)
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A.
Energy flow
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B.
Nutrient cycling
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C.
Static population
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D.
Biotic and abiotic interactions
Solution
Ecosystems are dynamic and characterized by changing populations, not static populations.
Correct Answer: C — Static population
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