A4

A4. Ecosystems | IB Biology
THEME A

A4. Ecosystems

Unity and Diversity
Explore the processes of evolution and speciation that drive biodiversity, and examine conservation strategies to protect our planet’s precious ecosystems.
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A4.1 Evolution and Speciation

SLIDES

A4.1 Evolution and Speciation (SL) – Presentation Slides

SL

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QUIZ

A4.1 Evolution and Speciation (SL) – End of Topic Quiz (20 marks)

SL

📝 Complete the quiz above and submit your answers

SLIDES

A4.1 Evolution and Speciation (HL) – Presentation Slides

HL

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QUIZ

A4.1 Evolution and Speciation (HL) – End of Topic Quiz (20 marks)

HL

📝 Complete the quiz above and submit your answers

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Shared Materials (Standard + Higher Level)

DOC

A4.1 Evolution and Speciation – Workbook (STANDARD + HIGHER LEVEL)

SL+HL

📖 Questions and answers workbook for both Standard and Higher Level students

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A4.2 Conservation of Biodiversity

SLIDES

A4.2 Conservation of Biodiversity (SL) – Presentation Slides

SL

💡 Use arrow keys or click to navigate slides

QUIZ

A4.2 Conservation of Biodiversity (SL) – End of Topic Quiz (20 marks)

SL

📝 Complete the quiz above and submit your answers

DOC

A4.2 Conservation of Biodiversity (SL) – Workbook

SL

📖 Questions and answers workbook for Standard Level students