Foundation Science Primary 6 Interactions

Siti observed a rotting log in a garden. She found fungi and bacteria living on it. What is the main role of these organisms in the garden ecosystem?

A To prevent other animals from living on the log
B To break down dead matter into simple nutrients
C To compete with plants for sunlight
D To provide food for plants
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Worked Solution

Step 1: Identify the organisms (fungi and bacteria) as decomposers. Step [2-9]: Decomposers break down dead organic matter. Step [2-9]: This process returns nutrients to the soil for plants to use.

Correct answer: To break down dead matter into simple nutrients

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