A3

A3. Organisms | IB Biology
THEME A

A3. Organisms

Unity and Diversity
Explore the incredible diversity of life on Earth and the systems used to classify and understand evolutionary relationships between organisms.
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A3.1 Diversity of Organisms

SLIDES

A3.1 Diversity of Organisms (SL) – Presentation Slides

SL

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QUIZ

A3.1 Diversity of Organisms (SL) – End of Topic Quiz (20 marks)

SL

📝 Complete the quiz above and submit your answers

SLIDES

A3.1 Diversity of Organisms (HL) – Presentation Slides

HL

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QUIZ

A3.1 Diversity of Organisms (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

A3.1 Diversity of Organisms – Workbook (STANDARD + HIGHER LEVEL)

SL+HL

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

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A3.2 Classification and Cladistics

SLIDES

A3.2 Classification and Cladistics (HL) – Presentation Slides

HL

💡 Use arrow keys or click to navigate slides

QUIZ

A3.2 Classification and Cladistics (HL) – End of Topic Quiz (20 marks)

HL

📝 Complete the quiz above and submit your answers

DOC

A3.2 Classification and Cladistics (HL) – Workbook

HL

📖 Questions and answers workbook for Higher Level students