1. Zooxanthellae Expulsion in Corals – Effect of temperature on healthy and damaged zooxanthellae release, experimental design, and hypothesis evaluation.

2. Adaptations of Benthic Fish – Structural differences between bony and cartilaginous fish, swim bladder presence in plaice larvae, and species identification using dichotomous keys.

3. Sea Urchin Population Estimation and Coral Reef Recovery – Lincoln index application, systematic sampling for coral polyps, and herbivorous vs. omnivorous urchin impact on reef restoration.

4. Photosynthesis and Environmental Factors in Marine Ecosystems – Relationship between temperature and photosynthesis, nutrient concentration variations, and their effects on productivity.

5. Latitude and Marine Biodiversity – Effect of latitude on razor clam species diversity, correlation analysis with environmental factors, and evaluation of causality in species distribution.