1. Cardiac Cycle and Blood Flow – Identification of the heart valves and tracing the pathway of blood circulation through the heart. 2. Atherosclerosis and Cardiovascular Disease – Explanation of how diet contributes to plaque formation and increases the risk of cardiovascular disease. 3. Cell Membrane Structure and Transport – Analysis of phospholipid bilayer properties and comparison of endocytosis and exocytosis mechanisms. 4. Genetic Inheritance of Blood Types – Use of a Punnett square to predict blood type inheritance and discussion of codominance in ABO blood groups. 5. Enzyme Activity in Starch Hydrolysis – Investigation of amylase function and calculation of initial reaction rates in starch breakdown. 6. Effects of Caffeine on Heart Rate – Examination of how different caffeine concentrations impact the heart rate of ghost shrimp in a controlled experiment.