Biology IA Exemplar: What is the effect of varying concentrations (0%, 5%, 10%, 15%, 20%, 25% ) of Aloe Vera (Aloe barbadensis Mill) extract on the inhibition of Rhizopus stolonifer growth, as measured by the diameter of the zone of inhibition (mm±0.5mm), under constant incubation temperature (25°C±0.5°C), incubation time (96 hours) and agar-agar nutrient medium? | RevisionDojo