1. Fertilisation and Sperm Adaptations – Explaining the role of the cortical reaction in preventing polyspermy and the significance of mitochondria in sperm motility. 2. Vascular Tissue in Plants – Calculating magnification of sieve tube elements and explaining structural differences between sieve tube elements and companion cells. 3. Nutrient Transport in Plants – Investigating the movement of nitrate ions from roots to leaves and the effects of magnesium deficiency on plant health. 4. Microbial Growth and Aseptic Techniques – Describing aseptic methods for working with bacteria and explaining conditions that promote bacterial infections in wounds. 5. Egg Cell Size and Reproductive Strategies – Comparing egg cell sizes across species and analyzing how environmental factors influence egg size and development. 6. Seed Banks and Genetic Conservation – Evaluating the importance of seed banks in preserving biodiversity and assessing factors affecting seed longevity and germination success.