NESA Biology Conducting Investigations

1 sample question with marking guides and sample answers

Q22
2024
NESA
4 marks
Q22

A student designed and conducted a practical investigation to test for the presence of microbes in water and food samples.

Q22a
2 marks

Justify a safety precaution required to prevent infection when conducting the investigation.

Q22b
2 marks

Explain how the student could ensure the reliability of the investigation.

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