Standard Science Primary 6 Interactions

Decomposers are important in an ecosystem because they __________.

A provide food for producers
B break down dead matter into simple substances
C control the population of predators
D convert light energy into chemical energy
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Worked Solution

Step 1: Decomposers (fungi/bacteria) feed on dead organisms. Step 2: They break down complex matter into nutrients (simple substances) like minerals. Step 3: These nutrients are then returned to the soil for plants.

Correct answer: break down dead matter into simple substances

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