The answer is: you can treat bacterial infections, not viruses with antibiotics.
The use of antibiotics in viral infections is not effective and many organizations recommend the use of antibiotics only when there is a documented bacterial infection. The treatment of viral infections has been difficult for they are tiny and replicate inside the cell.
Answer:
its option A. bright tail feathers of peacocks during breeding season
Explanation:
The answer I came up with is Echinoderms and Chordates.
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