Biology 9700/52 May June 2017 | Cambridge AS Level Past Papers With Mark Scheme

1. Investigating caffeine's effect on Daphnia heart rate by measuring beats under varying caffeine concentrations using microscope techniques.

2. Preparation of caffeine solutions and refining procedures to minimize experimental errors in Daphnia heart rate studies.

3. Applying Spearman’s rank correlation to analyze the relationship between cyanogenic plant populations and mean January temperatures.

4. Evaluating vole population trends using standardized trapping methods and genetic frequency calculations via Hardy-Weinberg principles.

5. Comparing vole genotype frequencies for fur color using genetic analysis and population sample data over a defined study period.