O Level Biology Practical 2020 Answers [2021] -

Accurate measurement, proper use of water baths, understanding variables. 3. 2020 Biology Practical 5090/31 - Key Focus Areas

Microscopy and cell observation

Q3. Suggest two improvements to the procedure. o level biology practical 2020 answers

Use a colorimeter to measure light absorbance or transmittance quantitatively, removing human bias. 3. Measuring Small Volumes proper use of water baths