1. Plant Water Loss & Transpiration | Measuring Water Loss in Plants – Investigating transpiration rates, stomatal water movement, and the effect of humidity on water loss. 2. Enzyme Activity & Digestion | Maltase Function & Absence in Vampire Bats – Completing enzyme function tables, explaining substrate specificity, and justifying enzyme absence in species. 3. Nervous System & Reflex Actions | Reflex Arc & Hormonal Control – Identifying central nervous system structures, explaining neuron functions, and describing hormonal effects on heart rate. 4. Excretion & Gas Exchange | Carbon Dioxide Removal in Organisms – Describing excretion, explaining respiration’s role in CO₂ production, and discussing atmospheric CO₂ effects. 5. Seed Structure & Oil Content | Castor Oil Plant Seed Dispersal – Identifying seed structures, testing for oil presence, and analyzing interactions with ants for seed dispersal. 6. Food Webs & Ecosystem Balance | Lake Victoria Fish Populations – Evaluating energy efficiency in diets, predicting fishing impacts, and proposing sustainable resource management. 7. Circulatory & Respiratory Systems | Comparing Human & Fish Gas Exchange – Identifying similarities and differences in circulatory and respiratory adaptations between fish and humans. 8. Immune System & Disease Resistance | Long-Term Immunity Development – Explaining immune memory, variation in immune responses, and factors affecting immunity levels.