📊 Biology
Q. Which hormone increases heart rate and BP in emergencies?
  • (A) Insulin
  • (B) Adrenaline
  • (C) Melatonin
  • (D) Thyroxine
✅ Correct Answer: (B) Adrenaline

Explanation: Adrenaline prepares the body for 'fight or flight', raising BP and heart rate.

Explanation by: Roshan
Adrenaline prepares the body for 'fight or flight', raising BP and heart rate.

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