Question detail
What is a potential effect of using auxins as selective weed killers?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Plant hormones (biology only)
Question
- A. They can harm beneficial insects.
- B. They promote the growth of all plants.
- C. They are harmless to the environment.
- D. They increase soil fertility.
Answer
The correct option is They can harm beneficial insects.. This answer is correct because it matches the approved learning objective to evaluate (HT only) agricultural and horticultural uses of plant hormones, including benefits, risks and effects on biodiversity in the subtopic Use of plant hormones (HT only).
Explanation
The correct option is They can harm beneficial insects.. They can harm beneficial insects. is correct because it directly supports the approved learning objective to evaluate (HT only) agricultural and horticultural uses of plant hormones, including benefits, risks and effects on biodiversity. This belongs to the subtopic Use of plant hormones (HT only) within Plant hormones (biology only), so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Use of plant hormones (HT only).
Common mistake
Overlooking Biodiversity Effects
Students often fail to discuss the potential negative effects of plant hormones on biodiversity when evaluating their agricultural and horticultural uses.
To fix this, students should ensure they include a balanced view that considers both the benefits and the risks to biodiversity, providing specific examples of how plant hormones can impact ecosystems.
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