alleryStart learning →The 'fight-or-flight' hormone secreted during fear or excitement is
Ainsulin
Bthyroxine
Cauxin
Dadrenaline
Answer & Solution
Correct answer: D. adrenaline
1. In an emergency the body prepares for quick action.
2. **Adrenaline**, from the adrenal glands, raises heartbeat and breathing for 'fight or flight'.
3. It is a rapid, short-acting hormone.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch7 'Control and Coordination', §7.2_
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