Question
How do the oral pills help in birth control? Name common pills used.
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OR
How are morphine and heroin related? Mention the effect each one of them has on the human body.| S.No. | Type of barrier | Example of the barrier | Function |
| (і) | А | B | Prevent microbial growth |
| (ii) | C | Polymorpho nuclear leucocytes | D |
| (iii) | Cytokine | E | F |