Biology
A colour blind person has difficulty in distinguishing which of the two colours ?

Blue & Red
Red & Black
White & Red
Green & Red

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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?

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

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