Biology WBI16/01 October 2023 | Edexcel International A Level Past Papers With Mark Scheme

Edexcel International AS/A Level Biology (WBI) Oct 2023

معلم موافق رایگان بودن است.

1. vitamin C degradation—percentage loss over time in camu camu fruits, experimental design for comparing storage durations, effect of storage on nutrient preservation

2. lung function analysis—spirometer trace interpretation, oxygen consumption rate calculation, biotic variable identification, medulla oblongata control of ventilation

3. locust feeding preference—null hypothesis testing on sorghum varieties, t-test statistical analysis, graphical data presentation with variability indicators

4. photosynthesis rate in aquatic plants—light intensity effect on Cabomba aquatica growth, controlled variable monitoring, data analysis techniques for rate comparison

5. field ecology and practical planning—experimental control in shaded vs non-shaded conditions, quantitative measurement validation, photosynthesis quantification methods

6. scientific investigation extension—data reliability improvement, sampling expansion, climate change influence on crop destruction, increased pest pressure hypothesis