Animal physiology - test HL - mark scheme
This is the mark scheme for the Animal physiology test I Attenuated microbes II Antigen molecules from a pathogen III A harmless pathogen that challenges the immune system A I only B I and II only C I and III only D All of the above I Myosin filaments II The sarcomere III The light band IV The distance between Z lines A I and II only B II, III and IV only C II and III only D All of them Spermatogenesis Oogenesis A...