MCQ
Ray florets of sunflower $(Compositae)$ are
- ABisexual
- ✓Unisexual
- CAsexual
- DNone of these
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.