Consolidated Human Genome investigation stations reduced from 4 to 3 focused 'Investigation Zones' (Pedigree, Chromosomes, and Biotech). This aligns perfectly with the 3 experiences in the Teacher Guide and reduces student/teacher confusion over station volume. Includes updated diagrams and clear alignment labels. Fixes pedigree line disconnections and page overflow issues. Added student response areas for functionality. Fixes affected legend icon to solid black.