Thanks Melissa for the tips

Here are the tips that I got from Melissa:

Paper 2 - Section A

1. Photosynthesis, enzyme involved/photometer (I supposed it's potometer!!)
2. Endocrine, level of blood glucose, blood clotting
3. Urine formation, osmoregulation, ADH
4. Menstrual cycle & hormones, sperm/ovum
5. Pollution, eutrophication, deforestation

Paper 2 - Section B

1. Thalasseamia/Inheritance
2. Effect of abiotic factors on growth

Paper 2 - Section C

1. J-tube experiment
2. Determining urine volume, energy value of food

Paper 3

1. BOD/Transpiration
2. Balanced diet/Endangered ecosystem