MCQ
Rheumatic fever can cause damage.
- AAlveoli of the Lungs.
- ✓Heart valves.
- CHeart muscles.
- DPleural membranes function.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$R$ : Influx of sodium ion during nerve impulse generation is due to efflux of potassium ions.
