science flashcards 0.0 / 5 ? ScienceGCSEOCR Created by: Rachel AdamsCreated on: 18-05-13 16:53 What is classification? organising living organisms into groups 1 of 8 what is kingdom split into? (in order) phylum, class, order, family, genus and species 2 of 8 what is natural classification based on? genetic similarities between organisms 3 of 8 what is artificial classification based on? appearance of organisms 4 of 8 why do classification systems change over time? we discover new species and learn more about species we already know of so classifications systems have to adapt to fit new findings 5 of 8 What does an evolutionary tree show? the evolutionary relationships of organisms, showing common ancestors and how closely related two species are 6 of 8 Definition of species a group of organisms which can interbreed to produce fertile offspring 7 of 8 what two things makes classifying organisms difficult? Asexual reproduction - bacteria make a copy of itself so no interbreeding 8 of 8
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