1 International Baccalaureate resources Search within results Go How ratings and recommendations work Apply Filter resourcesClear all filtersLevelClear filter International Baccalaureate Subject Biology TopicClear filter 11.3 The kidney and osmoregulation 11.4 Sexual reproduction Resources Flashcards Multi-tool 11.3 and 11.4 More fleshed out International Baccalaureate, Biology 24 flashcards Search again