Standard Science Primary 6 Interactions

Which of the following describes the primary role of decomposers in an ecosystem?

A To compete with predators for food
B To provide energy for producers
C To break down dead matter into simple substances
D To increase the amount of oxygen in the air
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Worked Solution

Step 1: Recall the function of fungi and bacteria. Step [2-9]: Decomposers break down dead organisms and waste. Step [2-9]: This recycles nutrients back into the soil for plants to use.

Correct answer: To break down dead matter into simple substances

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