2006 AP CSA FRQ 3: Fish
Topic: Marine Biology Case Study (Legacy)
Skills Tested: Case study specific - environment manipulation, 2D grid operations
Curriculum Alignment: Unit 4 (Data Collections) (2025-2026 AP CSA)
Points: 9 | Time Estimate: ~22 minutes
Study This Topic: Unit 2: Selection & Iteration Complete Study Guide
Note: This FRQ was part of the Marine Biology Case Study, which has been removed from the AP CSA curriculum.
Part (a)
Note: This FRQ was part of the Marine Biology Case Study which is no longer part of the AP CSA curriculum.
Try It First! Attempt to solve this part before viewing the solution.
Solution
// This FRQ required knowledge of the Marine Biology Case Study
// which has been removed from the AP CSA curriculum.
// Modern equivalent concepts include:
// - Working with 2D arrays/grids
// - Object placement and movement
// - Environment simulationPart (b)
The Marine Biology Case Study is no longer tested on the AP exam.
Solution
// Key skills from this FRQ are now tested through
// standard 2D array problems and simulation FRQs.Key Concepts
✓ 2D grid traversal and manipulation
✓ Object movement in grid structures
✓ Environment simulation patterns
Common Mistakes to Avoid
✗ This question used the deprecated Marine Biology Case Study
✗ Focus on modern 2D array and simulation FRQs instead
Official College Board Resources
About the Author: Tanner Crow is a certified AP Computer Science teacher with 11+ years of experience.
Last updated: January 2026