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A student is startled by a loud noise and her heart races. The hormone released is:
AAdrenaline
BAdrenalist
CAdenosine
DAldosterol
Answer & Solution
Correct answer: A. Adrenaline
1. A fright triggers a fast body response.
2. One hormone pours into the blood at once.
3. That hormone is adrenaline.
_Source: syllabus Science Class X, Chapter 7, Control and Coordination._
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