WACE Biology ATAR 2027 Practice Pack 4

What is inside Pack 4?

Build your skills one topic at a time across WACE Biology ATAR Units 3 and 4, then bring them together in checks and mixed revision.

• 18 topic sets with worked support, independent practice and self-checks.
• Two course checks and mixed revision, with the actual chapter counts listed below.
• Course-specific resource conditions stated in the question booklet.
• A printable skill review sheet to record what to revisit.
• Worked solutions, marking criteria, common errors and suggested next steps.

The 90-question total includes topic self-checks, course checks and mixed revision. The 18 worked examples are additional learning support.

Two PDFs in the pack

The question booklet and separate solutions booklet use matching question references.

What Pack 4 covers

The contents below follow the order in the question booklet. Each topic set includes its final self-check.

1. Check 1 — establish your biological reasoning

   18 questions
2. Unit 3DNA organisation, structure and replication

   2 questions
3. Unit 3Cell division, fertilisation and inherited variation

   2 questions
4. Unit 3Genetic code, expression and gene–environment effects

   2 questions
5. Unit 3Inheritance models, Punnett reasoning and pedigrees

   2 questions
6. Unit 3DNA amplification, sequencing, profiles and gels

   2 questions
7. Unit 3Recombinant applications, conservation and bioinformatics

   2 questions
8. Unit 3Evolutionary evidence and phylogenetic construction

   2 questions
9. Unit 3Gene pools, mutation, drift and gene flow

   2 questions
10. Unit 3Selection, speciation and extinction risk

    2 questions
11. Unit 4Homeostasis and negative-feedback pathways

    2 questions
12. Unit 4Animal heat balance and thermal strategies

    2 questions
13. Unit 4Animal water, salt and nitrogenous-waste balance

    2 questions
14. Unit 4Xerophyte and halophyte exchange strategies

    2 questions
15. Unit 4Pathogen groups, host interactions and disease stages

    2 questions
16. Unit 4Transmission, density, movement and environmental change

    2 questions
17. Unit 4Quarantine, immunisation and pathway controls

    2 questions
18. Unit 4Disease models, persistence and conditional predictions

    2 questions
19. Unit 4Biological inquiry, numeracy, ethics and communication

    2 questions
20. Mixed revision — connect WACE biological evidence

    18 questions
21. Check 2 — reason with fresh biological records

    18 questions

Total: 90 questions · 180 practice marks

How to use this resource

1. Start with a topic you are learning at school. You do not need to finish the whole course first.
2. Review the topic prerequisites and worked example. Attempt its practice questions, then the final self-check independently.
3. Use the separate solutions and marking guidance to check your reasoning and record a next step on your review sheet.
4. If you want a starting check, try Check 1 on topics you have already studied before viewing its solutions. Record untaught material as “Not yet studied”.
5. Return to mixed revision and Check 2 as you cover more topics and complete directed practice. Compare your independent work on the selected topics.

This is self-marked topic practice for Year 12 WACE Biology ATAR. Use it alongside your school materials. Practice marks are a review aid and do not predict an assessment grade or ATAR.

Start with the free sample

Pack 0 provides an independent breadth preview of selected skills with the same self-marking approach. Open its page to check scope and current sample availability.

Independent practice resource

Original Skill Align topic practice for the course and edition shown above. Skill Align is an independent publisher and is not affiliated with or endorsed by SCSA. The course checks support self-review; they do not predict an external examination grade or provide a validated diagnostic score.