2005 AP CSA FRQ 3: MemberInfo
Topic: Marine Biology Case Study (Legacy)
Skills Tested: Case study specific - ArrayList of objects, environment manipulation
Curriculum Alignment: Unit 4 (Data Collections) (2025-2026 AP CSA)
Points: 9 | Time Estimate: ~22 minutes
Study This Topic: Unit 1: Primitive Types Complete Study Guide
Note: This FRQ was part of the Marine Biology Case Study, which has been removed from the AP CSA curriculum. The underlying concepts (ArrayList operations, 2D arrays, object manipulation) are still tested in modern FRQs.
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. Use the concepts: Case study specific - ArrayList of objects.
Solution
// This FRQ required knowledge of the Marine Biology Case Study
// which has been removed from the AP CSA curriculum.
// Modern equivalent: ArrayList operations with custom objectsPart (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 ArrayList manipulation problems.Key Concepts
✓ ArrayList traversal with custom objects
✓ Object method calls within loops
✓ Conditional processing based on object state
Common Mistakes to Avoid
✗ This question used the deprecated Marine Biology Case Study
✗ Focus on modern ArrayList FRQs instead
Scoring Guidelines
Total Points: 9
Points are awarded for:
- Correct loop structure and bounds
- Proper method calls and return statements
- Correct conditional logic
- Handling edge cases appropriately
Partial credit is available for demonstrating understanding even with minor syntax errors.
Official College Board Resources
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About the Author: Tanner Crow is a certified AP Computer Science teacher with 11+ years of experience helping students succeed on the AP CSA exam.
Last updated: January 2026