Biology
Vitamins are

Non essential Amino acids
Micro nutrients
Macro Nutrients
Essential Amino acids

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Biology
Which one among the following statements is correct ?

Except the pulmonary vein, all other veins carry oxygenated blood
All arteries carry oxygenated blood
Except the pulmonary artery, all other arteries carry oxygenated blood
All veins carry oxygenated blood

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

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