Standard Science Primary 3 Diversity

Which of these is a way that bacteria can be useful to humans?

A By making our bread mouldy.
B By helping us make yogurt.
C By giving us a sore throat.
D By causing food to rot.
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Worked Solution

Step 1: Distinguish between helpful and harmful bacteria. Step 2: Specific bacteria are used in the fermentation process of milk to create yogurt. Step 3: This is a beneficial use.

Correct answer: By helping us make yogurt.

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