Standard Science Primary 3 Diversity

Which of the following is an example of helpful bacteria?

A Bacteria that cause food poisoning.
B Bacteria that cause a sore throat.
C Bacteria used to make yogurt.
D Bacteria that cause tooth decay.
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Worked Solution

Step 1: Bacteria can be either harmful or helpful. Step 2: Helpful bacteria are used in food production and digestion. Step 3: Yogurt is made using specific helpful bacteria that turn milk into yogurt.

Correct answer: Bacteria used to make yogurt.

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