2.46 Explain how alveoli are adapted for gas exchange by diffusion between air in the lungs and blood in capillaries - Video 2.47 Understand the biological consequences of smoking in relation to the lungs and the circulatory system - Video 2.48 Describe a simple experiment to investigate the effect...
BIOLOGY 0610/11 Paper 1 Multiple Choice May/June 2013 45 minutes Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) READ THESE INSTRUCTIONS FIRST Write in soft pencil.Do not use staples, paper clips, highlighters, glue or ...