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Solution


Q.

Assertion: Damage to the medulla oblongata causes death.
Reason: Medulla oblongata controls involuntary functions of the body.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.  
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.  
3 Assertion is true but Reason is false.  
4 Assertion is false but Reason is true  

Ans.

(1)

Medulla controls circulation, respiration, reflexes like swallowing, coughing, peristaltic movement of gut. So, damage to the medulla will stop circulation and respiration and eventually cause death. Thus, both assertion and reason are correct and reason is the correct explanation of the assertion.