Biology
One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?

Having waited a day, it is too late to take an antibiotic
You are infected by a virus
You need an antiseptic, not an antibiotic
You need to be vaccinated instead of taking an antibiotic

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Biology
Function of pace maker is

To initiate heart beat
To regulate the formation of urine
To start the process of respiration
To regulate the process of digestion

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