symbiosis - how 2 different living organisms live together and depend on each other , biologist - a person who studies living things , macrobiotic diet - a diet thought to help people live longer because it focuses on natural food, biosphere - the zone of the planet Earth where there is life(between the deep crust and the lower atmosphere) , biography - a piece of writing about another person's life , biology - the study of living things , autobiography - a piece of writing written by the person the book is about, antibiotic - a medicine used to save lives because it destroys harmful bacteria and cures infections , biopsy - the removal of living tissue for diagnostic examination , neurology - the study of the nervous system of living things ,

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