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Evolution and speciation · IB Biology HL

BiologyTopic A4.1P2

Evolution and speciation — IB Biology HL practice

Syllabus point A4.1 on Biology HL. Revise the topic, then upload your response for criterion-based marking — band-by-band feedback against official IB assessment criteria, not a generic AI grade.

Practice task

Biology — P2: Evolution and speciation Submit your work on "Evolution and speciation" for IB criterion-based examiner feedback. IB Biology HL — data response and extended response against markbands. Paste your response below (essay extract, exhibition commentary, comparative analysis, reflection, etc.) or upload a photo of handwritten work.

Upload your answer for marking →

IB Biology HL — data response and extended response against markbands.

Frequently asked questions

How do I practise IB Biology Evolution and speciation?
Revise the free lesson on Evolution and speciation (A4.1), then submit your response for criterion-based marking. IB examiners use markbands — our /mark tool scores band-by-band against the official descriptors.
What assessment criteria apply to Evolution and speciation?
For IB Biology HL, marking uses: IB Biology HL — data response and extended response against markbands.. Upload your work to see where your response sits in each band.
Is Evolution and speciation (A4.1) free on MarkScheme?
Criterion practice marking for Evolution and speciation is free on MarkScheme.