Analyse responses to the presence of pathogens by assessing the physical and chemical changes that occur in the host animal's cells and tissues Explain how the immune system responds after primary exposure to a pathogen, including innate and acquired immunity Thanks to STEM Reactor for sponsoring this podcast. They provide everything you need to do biotechnology at school, check them out at www.stemreactor.com.au If you would like to support the show and buy me a coffee head on over to www.buymeacoffee.com/hscbiologypod