Question

What are the merits of the first line of defence in the human body?

• A. They start working instantaneously.
• B. They are not dependent on previous exposure to infections.
• C. They are effective against a wide range of potentially infectious agents.
• D. All of these

Answer 1

The correct option is D

All of these

First Line of Defence is non-specific, continuous and permanent. Hence it offers instantaneous protection against a large number of potential pathogens or disease-causing microbes.