Biology WBI16/01 June 2021 | Edexcel International A Level Past Papers With Mark Scheme
Edexcel
International AS/A Level
Biology (WBI)
Jun
2021
2. switchgrass biomass comparison—Almo vs Kanlow yield trend, null hypothesis, energy release calculation from biomass
3. statistical analysis—Mann-Whitney U test, critical value comparison, significance of biomass difference
4. Aplysia gill reflex—stimulus frequency vs recovery time, preliminary method for quantitative timing, SHM response pattern
5. controlled variables—temperature, light, salinity, water volume, measurement consistency across trials
6. data presentation—median-based table and graph, variability indication, valid conclusion limitations due to method constraints
معلم موافق رایگان بودن است.
1. brine shrimp hatching experiment—calcium ion concentration effect, abiotic variable control, enzyme activation mechanism2. switchgrass biomass comparison—Almo vs Kanlow yield trend, null hypothesis, energy release calculation from biomass
3. statistical analysis—Mann-Whitney U test, critical value comparison, significance of biomass difference
4. Aplysia gill reflex—stimulus frequency vs recovery time, preliminary method for quantitative timing, SHM response pattern
5. controlled variables—temperature, light, salinity, water volume, measurement consistency across trials
6. data presentation—median-based table and graph, variability indication, valid conclusion limitations due to method constraints
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تعداد صفحات فایل : 20
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omer uner 
