An appropriate treatment for the control group of seedlings would be
- spraying with buffered detergent solution at the same intervals as the treatment group - VCE - SSCE Biology - Question 39 - 2021 - Paper 1
Question 39
An appropriate treatment for the control group of seedlings would be
- spraying with buffered detergent solution at the same intervals as the treatment group.
- spra... show full transcript
Worked Solution & Example Answer:An appropriate treatment for the control group of seedlings would be
- spraying with buffered detergent solution at the same intervals as the treatment group - VCE - SSCE Biology - Question 39 - 2021 - Paper 1
Step 1
spraying with buffered detergent solution at the same intervals as the treatment group.
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Answer
This option would not be suitable as buffered detergent solution could affect the growth, making it an inappropriate control treatment.
Step 2
spraying with distilled water at the same intervals as the treatment group.
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Answer
Using distilled water aligns with a control group strategy, as it introduces no additional variables that could influence the results.
Step 3
spraying with tap water at the same intervals as the treatment group.
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Answer
Though less ideal than distilled water, tap water can be acceptable depending on its content. However, it may introduce unknown variables.
Step 4
not spraying at all during the 12-week period.
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Answer
This option disregards the necessity for conditions similar to the treatment group, thus failing to serve as a valid control.
