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Comparing the sensitive plant's leaf-folding response to a person's knee-jerk reflex, the key similarity is that both involve:

Question
Comparing the sensitive plant's leaf-folding response to a person's knee-jerk reflex, the key similarity is that both involve:
A conscious decision-making process
A rapid response to a stimulus without extensive processing or growth
Hormonal signalling exclusively
Muscle proteins changing shape
Answer
A rapid response to a stimulus without extensive processing or growth
Detailed Explanation
Both responses are rapid reactions to a stimulus that occur without extensive conscious processing (in the sensitive plant, without any nervous system at all) or without growth being involved.
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