Biology: ANIMAL PHYSIOLOGY (AHL) Topical Past Paper Questions
IB Diploma Programme Biology past-paper questions on ANIMAL PHYSIOLOGY (AHL), free. This topic is frequently examined across 17 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
The diagram shows the brain mass and number of neurons in two rodents (agouti and capybara) and two primates (owl and capuchin monkeys). (a) Discuss whether the mass of the brain is proportional to the number of neurons. (b) Outline how the cerebral cortex is adapted to allow for…
Excretion is one of the functions of life. (a) Outline how carbon dioxide carried to the lungs in the pulmonary artery is moved to the air outside the body. (b) Explain how the kidney produces urine with a higher concentration of urea than blood plasma. (c) Compare and contrast e…
Movement of insects requires muscles in antagonistic pairs. The diagram shows an insect leg with muscles labelled X and Y. What actions in the human arm are equivalent to muscle X contracting and muscle Y relaxing? A. triceps contracts, biceps relaxes, arm extends B. biceps contr…
Sign in required
Full ANIMAL PHYSIOLOGY (AHL) question set, mark schemes and AI worksheets
Log in for the full topic-segregated question set, mark schemes, and AI worksheets built from every Biology past paper. New accounts start with 25 free credits.
Explore all Biology topics
All Biology topics