AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Nerve impulses act quickly but over a limited range — only tissues connected by nerves receive the signal. For fight-or-flight, the body needs to prepare many different tissue types simultaneously (heart, muscles, lungs, digestive system). Adrenaline, released into the blood, reaches all cells of the body, producing wide-ranging changes. Its effects also last longer, sustaining readiness until the threat passes. Hence, hormonal control is better suited for this response.
Source: Chapter 6, Section 6.3 — Hormones in Animals
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The examiner wants you to hit three comparison points — speed, reach, duration — and link each to why hormones win for fight-or-flight. The key textbook line is: "If the body design relied only on electrical impulses, the range of tissues instructed would be limited; a chemical signal would reach all cells." Mention adrenaline by name. Don't just describe what adrenaline does — explain why the chemical route is chosen over nerve impulses. Two well-linked points with the justification will earn full marks.