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...University of nairobi college biological and physical sciences faculty external studies bachelor education science fundamentals ecology szl written by dr nathan gichuki john githaiga lecturers department zoology published p o box introduction the purpose this unit is to enable you acquire knowledge in appropriate skills for teaching undertaking research or further study during course will be exposed a wide range indoor outdoor activities which are intended help understand better subject matter sub discipline biology that deals with interactions animals plants their natural surroundings these called environment plant animal comprises other living organisms biotic non human beings hence interact as well important survival successful reproduction all things including ourselves it therefore us how coexist affect affected our own learn identify describe different ecosystems world also land water function especially energy transferred from nutrients recycled have an opportunity about populat...