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Why is adrenaline called the emergency hormone?

Answer and explanation

Correct answer: Because it quickly activates the body during danger

Adrenaline is released during fear, stress, or danger and prepares the body for a rapid emergency response. It increases heart rate, breathing efficiency, blood flow to muscles, and the availability of glucose for immediate energy. This coordinated fight-or-flight response explains why option A is correct. Adrenaline is not a plant-only substance, does not induce sleep, and does not cause phototropism, so B, C, and D are incorrect.

Related tags

Control And CoordinationAdrenalineEmergency ResponseWorld Of LivingScienceClass 10 Mcq

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