C3. Organisms | IB Biology

THEME C

C3. Organisms

Interaction and Interdependence

Discover how organisms integrate complex body systems and defend against disease through coordinated physiological responses.

🔗 C3.1 Integration of Body Systems

Study how different organ systems work together to maintain homeostasis and coordinate responses in multicellular organisms.

STANDARD LEVEL

Student Slide Set End of Topic Quiz

HIGHER LEVEL

Student Slide Set End of Topic Quiz

STANDARD + HIGHER LEVEL

Workbook (Both Levels)

SL+HL

🛡️ C3.2 Defense Against Disease

Examine how organisms protect themselves from pathogens through immune responses and disease prevention mechanisms.

STANDARD LEVEL

Student Slide Set End of Topic Quiz

STANDARD LEVEL

Workbook (Standard Level)

🔗

C3.1 Integration of Body Systems

SLIDES

C3.1 Integration of Body Systems (SL) – Student Slide Set

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View Slides 1

QUIZ

C3.1 Integration of Body Systems (SL) – End of Topic Quiz (20 marks)

📝 Complete the quiz above and submit your answers

Take Quiz 2

SLIDES

C3.1 Integration of Body Systems (HL) – Student Slide Set

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View Slides 3

QUIZ

C3.1 Integration of Body Systems (HL) – End of Topic Quiz (20 marks)

📝 Complete the quiz above and submit your answers

Take Quiz 4

📚

Shared Materials (Standard + Higher Level)

DOC

C3.1 Integration of Body Systems – Workbook (STANDARD + HIGHER LEVEL)

SL+HL

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

View Workbook 5

🛡️

C3.2 Defense Against Disease

SLIDES

C3.2 Defense Against Disease (SL) – Student Slide Set

💡 Use arrow keys or click to navigate slides

View Slides 6

QUIZ

C3.2 Defense Against Disease (SL) – End of Topic Quiz (20 marks)

📝 Complete the quiz above and submit your answers

Take Quiz 7

DOC

C3.2 Defense Against Disease – Workbook (STANDARD LEVEL)

📖 Questions and answers workbook for Standard Level students

View Workbook 8