O Level Biology Practical 2020 Answers !new! -

Ensure constant volumes of Benedict's solution and urine sample across all tubes. Read syringes at to avoid parallax error. Question 2: Biological Drawing & Measurement

Because exam boards (Cambridge, Edexcel, OCR, etc.) do not publicly release official mark schemes for all variants of 2020 practicals (and many papers were cancelled/modified due to COVID-19), this post focuses on model answers , common core skills, and data interpretation—which is what students actually need to learn. o level biology practical 2020 answers

After placing a variegated leaf in sunlight, the green areas (containing chlorophyll) turn blue-black with iodine, while white areas remain brown. Explanation: Ensure constant volumes of Benedict's solution and urine