Biology 9700/31 Oct Nov 2020 | Cambridge AS Level Past Papers With Mark Scheme
- Investigation of milk concentration effects on sinking rate in copper sulfate solution.
- Preparation of varying milk concentrations using proportional dilution.
- Measurement of time taken for milk drops to sink through copper sulfate.
- Identification of errors in measurement and suggested improvements.
- Analysis of fat globule diameter in mammal milk types.
- Comparison of root section characteristics in plant specimens.

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